Mob never changes then! (8)
I believe the answer is:
november
'then' is the definition.
The answer and definition can be both related to time as well as being singular nouns.
Perhaps they are linked in a way I don't understand?
'mob never changes' is the wordplay.
'changes' indicates anagramming the letters.
'mob'+'never'='mobnever'
'mobnever' anagrammed gives 'NOVEMBER'.
Can you help me to learn more?
(Other definitions for november that I've seen before include "N in radio comms" , "Mob nerve is bad this winter month" , "Never mob (anag.)" , "Eleventh month" , "'N' in the phonetic alphabet" .)