From beginning to end, pesticide hurts fruit (7)
I believe the answer is:
peaches
'fruit' is the definition.
(I've seen this before)
'from beginning to end pesticide hurts' is the wordplay.
'from' indicates an anagram (from the letters).
'beginning to' indicates taking the first letters.
'hurts' becomes 'aches' ('ache' can be a synonym of 'hurt').
The initial letters of 'end pesticide' is 'ep'.
'ep' is an anagram of 'pe'.
'pe'+'aches'='PEACHES'
(Other definitions for peaches that I've seen before include "A speech (anag)" , "Juicy fruits" , "Producing fine specimens" , "Make a speech about the fruit" .)