Band taking an outing in the Kentish area (6)
I believe the answer is:
stripe
'band' is the definition.
(synonyms)
'an outing in the kentish area' is the wordplay.
'an outing' becomes 'trip' (I've seen this before).
'in the' indicates putting letters inside.
'kentish area' becomes 'SE' (South East of England).
'trip' put within 'se' is 'STRIPE'.
'taking' is the link.
(Other definitions for stripe that I've seen before include "Long band of a different colour" , "Line of different colour - indicator of rank" , "Priest (anag)" , "Band of colour - 3 of rank" , "Military sign of rank" .)