What movement of timer could be worth (5)

I believe the answer is:

merit

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'be worth' is the definition.
(synonyms)

'what movement of timer' is the wordplay.
'timer' anagrams to 'MERIT'.
However, I'm not clear how the anagram is indicated.

'could' acts as a link.

Can you help me to learn more?

(Other definitions for merit that I've seen before include "Deserve, be worthy of" , "Excellence, desert" , "Deserve or warrant" , "Excellence, worth" , "distinction" .)

I've seen this clue in The Telegraph.

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