Fruit in a lot of muesli monk distributed (9)
I believe the answer is:
muskmelon
'fruit' is the definition.
(I know that muskmelon is a fruit)
'lot of muesli monk distributed' is the wordplay.
'lot of' means to remove the last letter (a lot of the word but not all of it).
'distributed' is an anagram indicator.
'muesli' with its last letter taken away is 'muesl'.
'muesl'+'monk'='mueslmonk'
'mueslmonk' with letters rearranged gives 'MUSKMELON'.
'in a' is the link.
(Other definitions for muskmelon that I've seen before include "Monk's mule (anag) -- eg honeydew" , "Yellow or green fruit -- slum men OK? (anag)" .)