Tape cryptic as setter hides (8)
I believe the answer is:
cassette
'tape' is the definition.
(cassette tape is a kind of tape)
'cryptic as setter hides' is the wordplay.
'hides' indicates a hidden word.
'CASSETTE' is hidden in the letters of 'cryptic as setter'.
(Other definitions for cassette that I've seen before include "Form of tape" , "Container that holds a magnetic tape" , "recording device" , "Tape format" , "Video" .)