Wild child cut and topped citrus fruit (6)
I believe the answer is:
mowgli
'wild child' is the definition.
I know nothing about this answer so I can't judge whether this works.
'cut and topped citrus fruit' is the wordplay.
'cut' becomes 'mow' (as in mowing a lawn).
'and' means one lot of letters go next to another.
'topped' means to remove the first letter (to top something is to remove its top).
'citrus fruit' becomes 'ugli' (I've seen this in another clue).
'ugli' with its first letter removed is 'gli'.
'mow'+'gli'='MOWGLI'
Can you help me to learn more?
(Other definitions for mowgli that I've seen before include "Jungle Book boy (Kipling)" , "The Jungle Book hero" , "Kipling character" , "boy reared by wolves" , "Jungle Book 'man-cub'" .)