Finish on your head maybe (3,2)
I believe the answer is:
end up
'finish' is the definition.
(I know that finish can be written as end up)
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for end up that I've seen before include "Arrive eventually" , "Arrive (after long process)" , "Come to rest" , "head first" , "inverted" .)