Animals to rest after swimming (6)
I believe the answer is:
otters
'animals' is the definition.
The answer is an example.
'to rest after swimming' is the wordplay.
'after' is a charade indicator (letters next to each other).
'swimming' indicates an anagram.
'to'+'rest'='torest'
'torest' is an anagram of 'OTTERS'.
(Other definitions for otters that I've seen before include "web-footed creatures" , "Sleek water-animals" , "River-dwelling mammals" , "Or test out these mammals" , "Water animals with webbed feet and flat tails" .)