Point away from pointer (3-3)
I believe the answer is:
tip-off
'pointer' is the definition.
(thesaurus)
'point away' is the wordplay.
'point' becomes 'tip' (tip is a kind of point).
'away' becomes 'off' (synonyms).
'tip'+'off'='TIP-OFF'
'from' is the link.
(Other definitions for tip-off that I've seen before include "Give a secret warning" , "Informed hint" , "Piece of secret information" , "Inside information given" , "Warn helpfully" .)