Ulster reform movement, in effect (6)

I believe the answer is:

result

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

'movement in effect' is the definition.
'result' can be an answer for 'effect' (synonyms). I am unsure of the 'movement in' bit.

'ulster reform' is the wordplay.
'reform' indicates an anagram (letters in a new form).
'ulster' anagrammed gives 'RESULT'.

Can you help me to learn more?

(Other definitions for result that I've seen before include "Final outcome" , "Consequence or effect" , "'Outcome, consequence (6)'" , "Consequence in Ulster (6)" , "Effect of lustre" .)

I've seen this clue in the Evening Standard.

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