To linger (5)
I believe the answer is:
tarry
'to linger' is the definition.
('tarry' can be a synonym of 'linger')
This is the entire clue.
(Other definitions for tarry that I've seen before include "'Delay, linger (5)'" , "Famous novel by Patrick Kavanagh - '. . . . . Flynn'" , "perhaps not to split" , "Leave very slowly" , "Wait" .)