Pestered about branded clothes (8)
I believe the answer is:
badgered
'pestered' is the definition.
('badger' can be a synonym of 'pester')
'about branded clothes' is the wordplay.
'about' becomes 're' ('re' means regarding or about).
'branded' becomes 'badged' (branded with a badge).
'clothes' indicates putting letters inside (some letters clothe or cover others).
're' inserted within 'badged' is 'BADGERED'.
(Other definitions for badgered that I've seen before include "Pestered" , "chivvied" , "hassled" , "Harassed" , "Annoyed persistently" .)