Rested on a collection of pelts (5)
I believe the answer is:
slept
'rested' is the definition.
(sleeping is a kind of resting)
'a collection of pelts' is the wordplay.
'pelts' can be anagrammed to 'SLEPT'.
But, I'm unsure how the anagram is indicated.
'on' is the link.
Can you help me to learn more?
(Other definitions for slept that I've seen before include "Snoozed" , "Had forty winks" , "appeared still" , "Slumbered" , "Was dormant" .)