Fake sign of unpaid bill in English club (8)
I believe the answer is:
spurious
'fake' is the definition.
(I've seen this before)
I cannot understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for spurious that I've seen before include "Contrived" , "Not genuine or authentic" , "fraudulent" , "Forged" , "Bogus" .)