Crossword Genius

Make movement start and finish (4,2)

Ross

I believe the answer is:

wind up

I'm a little stuck... Click here to teach me more about this clue!

'make' is the definition.
(I know this)

'movement start and finish' is the wordplay.
'movement start' becomes 'dup' (I can't justify this - if you can you should believe this answer much more).
'and' says to put letters next to each other.
'finish' becomes 'win' (win is a kind of finish).
'dup' after 'win' is 'WIND-UP'.

Can you help me to learn more?

(Other definitions for wind up that I've seen before include "Stop" , "conclusion" , "annoy" , "Conclude" , "that the nervous get" .)

I've seen this clue in The Globe and Mail.
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