Kind of bow tie (4-2)
I believe the answer is:
clip-on
'kind of bow tie' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for clip-on that I've seen before include "Kind of earring or brooch?" , "Attached like a bow tie, for example" , "Easily removable tie" , "Like some ties" , "Kind or earring or bow tie" .)