Male cat and sheep turned up to see rodent (6)
I believe the answer is:
marmot
'rodent' is the definition.
(I know that marmot is a type of rodent)
'male cat and sheep turned up' is the wordplay.
'male cat' becomes 'tom' (a male cat is called a tom).
'and' means one lot of letters go next to another.
'sheep' becomes 'ram' (male sheep).
'turned up' says the letters should be written in reverse.
'tom'+'ram'='tomram'
'tomram' backwards is 'MARMOT'.
'to see' acts as a link.
(Other definitions for marmot that I've seen before include "Small burrowing animal of the squirrel family" , "Coarse-furred burrowing rodent" , "Creature" , "wild rodent" , "Furry burrowing rodent" .)