Mother and children supplying fruit (7)
I believe the answer is:
damsons
'fruit' is the definition.
(I've seen this before)
'mother and children' is the wordplay.
'mother' becomes 'dam' (female parent of an animal).
'and' says to put letters next to each other.
'children' becomes 'sons' (son is a kind of child).
'dam'+'sons'='DAMSONS'
'supplying' acts as a link.
(Other definitions for damsons that I've seen before include "Plum-like purple fruits" , "Plum-like purple types of fruit" .)