Look good and clean frantically (6)
I believe the answer is:
glance
'look' is the definition.
(glance is a kind of look)
'good and clean frantically' is the wordplay.
'good' becomes 'g' (abbreviation).
'and' is a charade indicator (letters next to each other).
'frantically' indicates anagramming the letters.
'clean' anagrammed gives 'lance'.
'g'+'lance'='GLANCE'
(Other definitions for glance that I've seen before include "Peek" , "Look briefly or bounce off" , "Take a brief or hurried look" , "fly off" , "Stroke - gander" .)