Police point to thicket (5)
I believe the answer is:
copse
'to thicket' is the definition.
(synonyms)
'police point' is the wordplay.
'police' becomes 'cops' (cop can informally mean a police officer).
'point' becomes 'E' (compass point).
'cops'+'e'='COPSE'
(Other definitions for copse that I've seen before include "Harvested woodland" , "Coppice" , "Scope for a small wood" , "Dense thicket of trees" , "A little wood" .)