Cleaners put off by toffs (10)
I believe the answer is:
detergents
'cleaners' is the definition.
(detergent is a kind of cleaner)
'put off by toffs' is the wordplay.
'put off' becomes 'deter' (both can mean to discourage).
'by' says to put letters next to each other.
'toffs' becomes 'gents' (gentlemen - toff can mean an upper-class person).
'deter'+'gents'='DETERGENTS'
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