Maybe it rated being dressed up (7)
I believe the answer is:
attired
'dressed up' is the definition.
('attire' can be a synonym of 'dress up')
'maybe it rated' is the wordplay.
'maybe' indicates anagramming the letters.
'it'+'rated'='itrated'
'itrated' with letters rearranged gives 'ATTIRED'.
'being' is the link.
(Other definitions for attired that I've seen before include "Dressed or clothed" , "got up" , "surrounded by duds" , "Turned out" , "Wearing clothes" .)