Kidnapper is muscular type (8)
I believe the answer is:
abductor
'kidnapper' is the definition.
(synonyms)
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for abductor that I've seen before include "Person snatching, eg, a child" , "Muscle" , "Paris, for example" , "One removing by force" , "Taker (of someone)" .)