dreadful state

Charade

DI (synonym="Detective Inspector – policeman") + LAPIDATION (synonym="getting stoned – the punishment inflicted on St Stephen") = DILAPIDATION; definition: "a dreadful state"

Hands

L R (left right – hands) round EMU (bird) — Fifteensquared

being yellow

Reversal

COD (fish) round (cakes, as in caked with mud) a reversal (flipping) of RAW (green) + ICE (dessert) — Fifteensquared

Opposes

RESITS (further exams) round S[chool] — Fifteensquared

making exchanges

Charade

TRA (synonym="TRA") + DING (synonym="Liren, current chess champion") = TRADING; definition: "making exchanges"

Means of buying

Homophone

Sounds like (audio version) Czech book – see here

at large

Homophone

As an East Ender might pronounce ‘three’ (trio) — Fifteensquared

bank

Deletion

Ti[b]er ( Italian river) minus b (bishop) a neat ‘lift and separate’ — Fifteensquared

One might get played

Homophone

Another ‘sounds like’ (auditor’s) – base (vile) FIDDLE (scam)

Story

Charade

RUTH (book of the Old Testament) after UN (a Spanish) T[ranslator] – and another ‘lift and separate’… — Fifteensquared

Person in Black

… and another: MER (French – ‘abroad’ – for sea) round O (old) URN (vessel) — Fifteensquared

hobbled

Charade

HAM (luvvie) + STUNG (attacked by bee) round R (river) – I queried the definition but I should have known better: ‘hobble’ can be transitive, too (Collins: ‘to fetter the legs of {a horse} in order to restrict movement’) — Fifteensquared

quick

Charade

A (synonym of "American,") + LIVE (synonym of "happens,"); definition: "quick"

scientist playing God

Charade

FRANK (outspoken) + E[i]NSTEIN (genius) minus i (one) — Fifteensquared

Syrian

Hidden word

D[r]AMA (theatrical work) minus r (right) + SCENE (part of drama) – the question mark indicates definition by example — Fifteensquared

one in bed

Charade

LARKS (synonym="the collective noun for larks is an ‘exaltation’") + PUR (synonym="PUR") = LARKSPUR; definition: "one in bed"

Old Brits,

Charade, Reversal

PIC (synonym of "still") + ST (synonym of "way") [reversal: "to"]; definition: "Old Brits,"

Strike

Acrostic

TOOL (idiot) in DOWN (neck – slang for drink) + initial letter (face) of Scrap — Fifteensquared

Road

MA (parent) in TAR (Jack) [keroua]C – a super clue; a ‘lift and separate’ and, of course, Jack Kerouac wrote ‘On The Road’ — Fifteensquared

Animal

Reversal

BIRO (reversal="pen") + I (synonym="island") = ORIBI; definition: "Animal that grazes"

father

Charade

ERIC (Monty Python’s Idle) after C[asua]L — Fifteensquared

would

Container

EGG (synonym="animal produce") in VIE (synonym="struggle") = VEGGIE; definition: "Such a person would"

waterside shed

Charade

BOA (stole) + THOU[sand]  (M) + the ‘case’ of S[artr]E — Fifteensquared

navy emblem

Container

N (synonym="navy") in REDESIGN (synonym="new look") = REDENSIGN; definition: "navy emblem"

model

Anagram

An anagram (fashion) of ITEMS round U (posh) LA (Hollywood area) — Fifteensquared

hit!

rewarding activity

Deletion

EARNER (deletion) = EARNER; definition: "rewarding activity"

driver

Charade

BUTT (synonym="behind") + ON (abbreviation="acceptable") = BUTTON; definition: "British driver"

One

Charade, Reversal

reverse of REMIT (synonym of "brief") [reversal: "uprising"]; definition: "One might record duration"

Enchanting person's

Charade

MAG (synonym="publication") + US (synonym="the Guardian?") = MAGUS; definition: "Enchanting person's"