Scent a different attitude (6)
I believe the answer is:
stance
'attitude' is the definition.
(stance is a kind of attitude)
'scent a different' is the wordplay.
'different' indicates an anagram.
'scent'+'a'='scenta'
'scenta' is an anagram of 'STANCE'.
(Other definitions for stance that I've seen before include "Position or attitude taken" , "Attitude (of body, mind)" , "Enacts (anag)" , "Posture, standing position" , "Upright posture" .)