Hurried back, saving time, chasing American experts (6)
I believe the answer is:
adepts
'experts' is the definition.
(adept is a kind of expert)
'hurried back saving time chasing american' is the wordplay.
I cannot quite see how this works, but
'time' could be 'ad' (AD, Anno Domini, as opposed to BC, Before Christ) and 'ad' is present in the answer.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for adepts that I've seen before include "Very skilled persons" , "Pasted by skilled people" , "Proficient people" , "Those completely skilled in their work" , "Pasted by experts" .)