Ordinary or dull (7)
I believe the answer is:
humdrum
This clue is a double definition.
'ordinary' is the first definition.
(I've seen this before)
'dull' is the second definition.
(similar in meaning)
(Other definitions for humdrum that I've seen before include "Ordinary - monotonous" , "Far from exciting" , "Run-of-the-mill" , "Monotonous; commonplace" , "Uneventful - routine" .)