Shake the arms, being covered with wood shavings? (7)
I believe the answer is:
hamster
'wood shavings?' is the definition.
Although both the answer and definition are singular nouns, I cannot see how they can define each other.
'shake the arms being covered with' is the wordplay.
'shake' is an anagram indicator.
'being covered with' means one lot of letters go next to another (in a down clue, some letters go on top of others).
'the'+'arms'='thearms'
'thearms' is an anagram of 'HAMSTER'.
Can you help me to learn more?
(Other definitions for hamster that I've seen before include "Rodent often kept as pet" , "Kind of rodent with cheekpouches, often a pet" , "Small pet rodent with pouched cheeks" , "Short-tailed burrowing rodent" , "Animal" .)