Knick-knack (7)
'knick-knack' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for trinket that I've seen before include "Small item of jewellery" , "Cheap ornament" , "Trashy ornament" , "Small ornament, bauble" , "Ornamental item of little worth" .)
(Other definitions for bibelot that I've seen before include "trumpery" , "Small decorative object without practical utility" .)