Being sluggish, a pet dog rolls back over (9)
I believe the answer is:
gastropod
'being sluggish a pet dog rolls back over' is the definition.
I can't judge whether this defines the answer.
'a pet dog rolls back over' is the wordplay.
'pet' becomes 'strop' (both can mean a tantrum).
'rolls back' says the letters should be written in reverse (I've seen 'rolled back' mean this).
'over' indicates putting letters inside.
'dog' reversed gives 'god'.
'a'+'strop'='astrop'
'astrop' placed into 'god' is 'GASTROPOD'.
Can you help me to learn more?
(Other definitions for gastropod that I've seen before include "Shellfish" , "Slimy type" , "sluggish type" , "Escargot" , "slug, perhaps" .)