Restricted by new pointer (6)
I believe the answer is:
narrow
'restricted' is the definition.
(thesaurus)
'by new pointer' is the wordplay.
'by' is a charade indicator (letters next to each other).
'new' becomes 'n'.
'pointer' becomes 'arrow' ('arrow' can be a synonym of 'pointer').
'n' next to 'arrow' is 'NARROW'.
(Other definitions for narrow that I've seen before include "Of small width, strait" , "contract" , "Strait, not broad" , "Strict" , "Limited in scope; not wide" .)