Pop into safe neighbourhood, primarily for play (5,3)
I believe the answer is:
peter pan
'play' is the definition.
(I've seen this before)
'pop into safe neighbourhood primarily' is the wordplay.
'pop' becomes 'pa' (both can mean father).
'into' indicates putting letters inside.
'safe' becomes 'peter' (I've seen this before).
'primarily' says to take the initial letters.
The initial letter of 'neighbourhood' is 'n'.
'peter'+'n'='petern'
'pa' going into 'petern' is 'PETER PAN'.
'for' is the link.
(Other definitions for peter pan that I've seen before include "J M Barrie's ever-young boy" , "Youth forever" , "D [Disney] made" , "Kind of collar for" , "Musical from Barrie play" .)