What does the cryptic crossword clue "Nobleman not producing results in speech (5)" mean?

The answer is BARON. Explanation: Homophone (in speech) of BARREN = not producing results.

Nobleman not producing results in speech (5)

Independent Puzzle #10932 19 Across 2021-10-26

Explanation

Homophone (in speech) of BARREN = not producing results.

Source: Fifteensquared

Answer

BARON