Daughter eats rotten fruit (5)
I believe the answer is:
dates
'fruit' is the definition.
(I've seen this before)
'daughter eats rotten' is the wordplay.
'daughter' becomes 'd'.
'rotten' is an anagram indicator.
'eats' anagrammed gives 'ates'.
'd'+'ates'='DATES'
(Other definitions for dates that I've seen before include "Fruits for social engagements" , "Goes steady" , "Particular times" , "becomes less fresh" , "Trysts" .)