Common sense about new place for puzzle (7)
I believe the answer is:
nonplus
'puzzle' is the definition.
('nonplus' can be a synonym of 'puzzle')
'common sense about new place' is the wordplay.
'common sense' becomes 'nous' (nous is a kind of common sense).
'about' is an insertion indicator.
'new' becomes 'n'.
'place' becomes 'pl' (I've seen this in other clues**).
'n'+'pl'='npl'
'nous' going around 'npl' is 'NONPLUS'.
'for' acts as a link.
(Other definitions for nonplus that I've seen before include "'Disconcert, puzzle (7)'" , "Disconcert, confound" , "Flummox" , "State of confusion" , "Cause dismay" .)