Layabout I'd left with hesitation (5)
I believe the answer is:
idler
'layabout' is the definition.
(I know that layabout can be written as idler)
'i'd left with hesitation' is the wordplay.
'left' becomes 'l' (common abbreviation).
'with' is a charade indicator (letters next to each other).
'hesitation' becomes 'er' (sound made while hesitating - um, er).
'id'+'l'+'er'='IDLER'
(Other definitions for idler that I've seen before include "Layabout; ship crewman not on watch" , "Riled (anag)" , "A lazy loafer" , "Lazy type" , "Reluctant worker" .)