Sky business guys with time to cover area (9)
I believe the answer is:
firmament
'sky' is the definition.
(thesaurus)
'business guys with time to cover area' is the wordplay.
I cannot quite understand how this works, but
'business' could be 'firm' (firm is a kind of business) and 'firm' is found in the answer.
'guys' could be 'men' and 'men' is found in the answer.
'time' could be 't' and 't' is present in the answer.
'area' could be 'a' (maths abbreviation) and 'a' is located in the answer.
This accounts for all the letters.
This may be the basis of clue (or it may be nonsense).
(Other definitions for firmament that I've seen before include "Sky (literary)" , "The celestial sphere" , "Heavens, sky" , "The starry heaven" , "outer space, encapsulated" .)