Weapon that's carried by actor with a small part? (5)
I believe the answer is:
spear
This clue is a double definition.
'weapon' is the first definition.
(I know that spear is a type of weapon)
'that's carried by actor with a small part?' is the second definition.
(spear-carrier can mean an actor without lines)
(Other definitions for spear that I've seen before include "Stabbing, throwing, weapon" , "pierce with this?" , "Sharp weapon" , "Simple weapon" , "stick" .)