Pork pie held by suppliers (3)
I believe the answer is:
lie
'pork pie' is the definition.
('pork pie' is Cockney rhyming slang for a lie)
'held by suppliers' is the wordplay.
'held by' indicates the answer is hidden within the clue.
'LIE' is hidden within 'suppliers'.
(Other definitions for lie that I've seen before include "Story" , "Disinformation" , "Stretch out" , "Fib - be prone" , "Equivocate" .)