Item for Rosie (5)
I believe the answer is:
rivet
'item for rosie' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for rivet that I've seen before include "Completely engross; pin" , "Metal bolt that's hammered" , "Clinch - bolt" , "Transfix" , "Trevi (anag.)" .)