Growing no end of fruit (6)
I believe the answer is:
raisin
'fruit' is the definition.
(raisin is a kind of fruit)
'growing no end' is the wordplay.
'growing' becomes 'raising' ('raise' can be a synonym of 'grow').
'no end' means to remove the last letter.
'raising' with its final letter taken away is 'RAISIN'.
'of' acts as a link.
(Other definitions for raisin that I've seen before include "Partially dried grape" , "A dried grape used in cake" , "Fruit for the Christmas cake" , "Dried 18" , "Somewhat dry fruit" .)