Yes: cats can produce bliss (7)
I believe the answer is:
ecstasy
'bliss' is the definition.
(I know that ecstasy is a type of bliss)
'yes cats can produce' is the wordplay.
'can produce' is an anagram indicator (I've seen this in other clues).
'yes'+'cats'='yescats'
'yescats' anagrammed gives 'ECSTASY'.
(Other definitions for ecstasy that I've seen before include "Feeling of great happiness" , "Youth drug or unalloyed bliss" , "Street name for the MDMA drug" , "transports" , "Bliss, rapture" .)