Oddly poses as group of lawmen (5)

I believe the answer is:

posse

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'group of lawmen' is the definition.
'posse' can be an answer for 'lawmen' (I've seen this before). I'm not certain of the 'group of' bit.

'oddly poses' is the wordplay.
'oddly' indicates an anagram.
'poses' is an anagram of 'POSSE'.

'as' is the link.

Can you help me to learn more?

(Other definitions for posse that I've seen before include "Group temporarily established for some purpose" , "Group supporting sheriff" , "Sheriff's band of men" , "power" , "Gang" .)

I've seen this clue in The Mirror.

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