Drive round Northern Ireland is fine, perhaps (6)
I believe the answer is:
punish
'is fine perhaps' is the definition.
(I've seen this in another clue)
'drive round northern ireland' is the wordplay.
'drive' becomes 'push' (push is a kind of drive).
'round' indicates putting letters inside.
'northern ireland' becomes 'NI' (abbreviation).
'push' going around 'ni' is 'PUNISH'.
(Other definitions for punish that I've seen before include "Fine perhaps" , "Discipline" , "Sentence" , "Penalise" , "beat" .)