Mere agents might make them (10)

I believe the answer is:

agreements

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'them' is the definition.
I can't judge whether this definition defines the answer.

'mere agents might make' is the wordplay.
'might make' indicates an anagram (the letters might make if rearranged).
'mere'+'agents'='mereagents'
'mereagents' with letters rearranged gives 'AGREEMENTS'.

Can you help me to learn more?

(Other definitions for agreements that I've seen before include "Compromises in" , "pledges" , "Concerts" , "contracts" .)

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

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