Throw suddenly into a lively Scottish dance (5)
I believe the answer is:
fling
'scottish dance' is the definition.
(as in the Highland fling)
'throw suddenly into a lively' is the wordplay.
I cannot really see how this works, but
'into' could be 'in' and 'in' is located 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 fling that I've seen before include "quick one?" , "Throw; Scottish dance" , "Throw with force" , "Toss" , "Brief relationship" .)