Boring sort of bard (4)
I believe the answer is:
drab
'boring' is the definition.
(I've seen this in another clue)
'sort of bard' is the wordplay.
'sort of' indicates an anagram.
'bard' is an anagram of 'DRAB'.
(Other definitions for drab that I've seen before include "Dull light brown colour" , "Dingy - shabby" , "kind of tart" , "Gloomy" , "woman with slatternly habits" .)