Additional items (6)
I believe the answer is:
extras
'additional items' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for extras that I've seen before include "Additional items surplus to requirements, spares" , "Add-ons" , "5 [BYE BYE]" , "Bit players, actors without dialogue" , "Inessentials" .)