Sprain, when you turn round (5)
I believe the answer is:
twist
This clue might be a double definition.
'sprain' is the first definition.
(I know that sprain can be written as twist)
'turn round' is the second definition.
(thesaurus)
'when you' acts as a link.
I am not very happy about this link. Some or all of it may belong to one of the definitions.
Can you help me to learn more?
(Other definitions for twist that I've seen before include "title character" , "1960s' dance craze" , "Change - 1960s' dance" , "Dance; defraud" , "Boy wanting more" .)