Sundries (6)
I believe the answer is:
extras
'sundries' is the definition.
(extra is a kind of sundry)
This is all the clue.
(Other definitions for extras that I've seen before include "Sundries" , "They're additional on a film set" , "Bit players in film" , "Additional items surplus to requirements, spares" , "Wides, byes, etc." .)