A “Division One” supporter? (5)
I believe the answer is:
divan
'supporter?' is the definition.
Although both the answer and definition are singular nouns, I can't see how one could define the other.
'a division one' is the wordplay.
'a division' becomes 'div' (I am not sure about this - if you are sure you should believe this answer much more).
'one' becomes 'an' (I've seen this in other clues).
'div'+'an'='DIVAN'
Can you help me to learn more?
(Other definitions for divan that I've seen before include "Sort of bed" , "Backless seat; bed" , "Viand (anag.)" , "Couch - bed" , "Long backless sofa" .)