Leaves work site around ten (5)
I believe the answer is:
exits
'leaves' is the definition.
('exit' can be a synonym of 'leave')
'work site around ten' is the wordplay.
'work' is an anagram indicator.
'around' indicates putting letters inside.
'ten' becomes 'x' (roman numeral).
'site' anagrammed gives 'eits'.
'eits' enclosing 'x' is 'EXITS'.
(Other definitions for exits that I've seen before include "Withdraws" , "Egresses" , "Goes out, leaves" , "Ways out" , "Departs" .)