Clothing part of transmission (4)
I believe the answer is:
gear
This clue might be a double definition.
'clothing part' is the first definition.
'gear' can be an answer for 'clothing' (I've seen this before). I am unsure of the 'part' bit.
'transmission' is the second definition.
(thesaurus)
'of' is the link.
Can you help me to learn more?
(Other definitions for gear that I've seen before include "illegal drugs" , "Clothes -- paraphernalia" , "working order" , "Toothed wheel, equipment and clothes" , "Effects" .)