Out of neutral voguish clothes (2,4)
I believe the answer is:
in gear
'out of neutral' is the definition.
(I've seen this in another clue)
'voguish clothes' is the wordplay.
'voguish' becomes 'in'.
'clothes' becomes 'gear' (I've seen this before).
'in'+'gear'='IN GEAR'
(Other definitions for in gear that I've seen before include "Having shifted" , "Performing effectively" , "Dressed up" , "ready to go?" , "Ready to move (of car)" .)