Boilersuits (8)
I believe the answer is:
overalls
'boilersuits' is the definition.
('overall' can be a synonym of 'boilersuit')
This is all the clue.
(Other definitions for overalls that I've seen before include "Protective garment" , "Boiler suit" , "Save roll (anag.)" , "Boilersuits" , "Boiler suits" .)