To avoid it a child may go into it (6)
I believe the answer is:
hiding
'it' is the definition.
The definition suggests a singular noun which matches the answer.
'to avoid it a child may go' is the wordplay.
I cannot really see how this works, but
'go' could be 'din' (dinning is a kind of going) and 'din' is found within the answer.
This explanation may well be incorrect...
'into' is the link.
Can you help me to learn more?
(Other definitions for hiding that I've seen before include "Physical beating" , "Beating - state of concealment" , "Concealing oneself - good thrashing" , "Not publicising" , "big defeat" .)