Child carrying most of wild old fruit (6)
I believe the answer is:
tomato
'fruit' is the definition.
(I've seen this before)
'child carrying most of wild old' is the wordplay.
'child' becomes 'tot' (I've seen this before).
'carrying' is an insertion indicator.
'most of wild' becomes 'ma' (I can't explain this - if you can you should give a lot more credence to this answer).
'old' becomes 'o' (common abbreviation eg in OE for Old English).
'tot' placed around 'ma' is 'tomat'.
'tomat'+'o'='TOMATO'
Can you help me to learn more?
(Other definitions for tomato that I've seen before include "Love apple (or "beef" fruit?)" , "A motto turned out to be fruit or veg" , "Red fruit eaten as veg" , "A glossy red fruit eaten as a vegetable" , "Pulpy fruit eaten as vegetable" .)