Goes quickly back to turn round (4)
I believe the answer is:
spin
'to turn round' is the definition.
(thesaurus)
I don't understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for spin that I've seen before include "Make up a story" , "Turn round quickly" , "Jaunt" , "Make thread; go round" , "Give biased view" .)