Put off man producing washing powder? (9)
I believe the answer is:
detergent
'washing powder?' is the definition.
(washing detergent)
'put off man' is the wordplay.
'put off' becomes 'deter' (both can mean to discourage).
'man' becomes 'gent' (gent is a kind of man).
'deter'+'gent'='DETERGENT'
'producing' acts as a link.
(Other definitions for detergent that I've seen before include "Soluble cleansing agent" , "Cleansing substance used for washing clothes" , "Cleansing solvent" , "Get tender (anag)" , "help with the washing-up" .)