Tormented and looking embarrassed by tag (8)
I believe the answer is:
badgered
'tormented' is the definition.
(badgering is a kind of tormenting)
'looking embarrassed by tag' is the wordplay.
'looking embarrassed' becomes 'red' (I've seen this before).
'by' means one lot of letters go next to another.
'tag' becomes 'badge' (badging is a kind of tagging).
'red' after 'badge' is 'BADGERED'.
'and' is the link.
(Other definitions for badgered that I've seen before include "hassled" , "chivvied" , "Annoyed persistently" , "Pestered" , "Harassed" .)