Playwright crouched down to audience (6)
I believe the answer is:
coward
'playwright' is the definition.
(Noel Coward)
I don't understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for coward that I've seen before include "A craven person" , "One lacking in courage" , "Author of 'Blithe Spirit'" , "Faint-hearted person" , "One chicken-hearted" .)