Show requiring a bit of cooperation (5)
I believe the answer is:
opera
'show' is the definition.
(I've seen this before)
'a bit of cooperation' is the wordplay.
'a bit of' indicates a hidden word.
'OPERA' can be found hidden inside 'cooperation'.
'requiring' acts as a link.
(Other definitions for opera that I've seen before include "Lohengrin, say" , "Musical in which all the words are sung" , "Glyndebourne production" , "Met show?" , "Norma, say" .)