I belong for a change - that's mean (7)
I believe the answer is:
ignoble
'mean' is the definition.
(similar in meaning)
'i belong for a change' is the wordplay.
'for a change' indicates an anagram.
'belong' anagrammed gives 'gnoble'.
'i'+'gnoble'='IGNOBLE'
'that's' is the link.
(Other definitions for ignoble that I've seen before include "Base - in globe (anag)" , "Base, not honourable" , "Humble; despicable" , "Not worthy in character or purpose" , "Not honourable in character or purpose" .)