Unpleasant and somewhat smug lyricist (4)
I believe the answer is:
ugly
'unpleasant' is the definition.
(I've seen this before)
'somewhat smug lyricist' is the wordplay.
'somewhat' indicates a hidden word.
'UGLY' can be found hidden inside 'smug lyricist'.
'and' is the link.
(Other definitions for ugly that I've seen before include "Not beautiful, plain" , "Bad to look at" , "'Unattractive, unsightly (4)'" , "Not handsome or pleasing to the eye" , "Far from beautiful" .)