A very quiet fellow provides fruit (6)
I believe the answer is:
apples
'fruit' is the definition.
(I've seen this before)
'a very quiet fellow' is the wordplay.
'very quiet' becomes 'pp'.
'fellow' becomes 'les' (Les is a man's name).
'a'+'pp'+'les'='APPLES'
'provides' acts as a link.
(Other definitions for apples that I've seen before include "-- and pears" , "They never fall far from the tree" , "Divinely influenced" , "Crisp fruits" , "Eg, russets, pippins" .)