War on kid initially harming complex creation (9)
I believe the answer is:
'creation' is the definition.
(handiwork is a kind of creation)
'war on kid initially harming complex' is the wordplay.
'initially' says to take the initial letters.
'complex' indicates an anagram.
The first letter of 'harming' is 'h'.
'waronkidh' anagrammed gives 'HANDIWORK'.
(Other definitions for handiwork that I've seen before include "Manual creation" , "one's doing" .)