Small map isn’t wrong having east (5)
I believe the answer is:
inset
'small map' is the definition.
(I've seen this before)
'isn't wrong having east' is the wordplay.
'wrong' indicates an anagram.
'having' is an insertion indicator.
'east' becomes 'e' (synonyms).
'isnt' is an anagram of 'inst'.
'inst' going around 'e' is 'INSET'.
(Other definitions for inset that I've seen before include "Photographic cameo superimposed on to another print" , "Tines (anag.)" , "Diagram within another" , "Implant" , "Placed inside" .)