Slim-bodied beast more turned on without husband (5)
I believe the answer is:
otter
'slim-bodied beast' is the definition.
I can't tell whether this definition defines the answer.
'more turned on without husband' is the wordplay.
'more turned on' becomes 'hotter' ('hot' can be a synonym of 'turned on').
'without' indicates named letters should be taken away.
'husband' becomes 'h'.
'hotter' with 'h' taken away is 'OTTER'.
Can you help me to learn more?
(Other definitions for otter that I've seen before include "Riverine mammal" , "Web-footed mammal" , "Water creature" , "Torte (anag)" , "River-dwelling mammal" .)