Dull local is led by university wise men (13)
I believe the answer is:
unimaginative
'dull' is the definition.
('unimaginative' can be a synonym of 'dull')
'local is led by university wise men' is the wordplay.
'local' becomes 'native' ('native' can be similar in meaning to 'local').
'is led by' means one lot of letters go next to another.
'university' becomes 'uni' (I've seen this in other clues).
'wise men' becomes 'magi' (I've seen this before).
'uni'+'magi'='unimagi'
'native' put after 'unimagi' is 'UNIMAGINATIVE'.
(Other definitions for unimaginative that I've seen before include "Lacking invention" , "Stolid, somewhat dull" , "Mentally rather dull" , "Lacking in mental creativity" .)