Stuck with inspiring manager backing clubs (5)
I believe the answer is:
clung
'stuck' is the definition.
('cling' can be a synonym of 'stick')
'inspiring manager backing clubs' is the wordplay.
'inspiring manager' becomes 'lung' (I can't justify this - if you can you should give a lot more credence to this answer).
'backing' is a charade indicator (letters next to each other).
'clubs' becomes 'c' (abbreviation used in card games such as bridge).
'lung' put after 'c' is 'CLUNG'.
'with' acts as a link.
Can you help me to learn more?
(Other definitions for clung that I've seen before include "Held on tightly" , "Held on tight" , "Was emotionally close" , "Held on desperately" .)