Not yet resolved, working men endured it (12)

I believe the answer is:

undetermined

'not yet resolved' is the definition.
(still to be resolved or clarified)

'working men endured it' is the wordplay.
'working' indicates an anagram.
'men'+'endured'+'it'='menenduredit'
'menenduredit' is an anagram of 'UNDETERMINED'.

(Another definition for undetermined that I've seen is " undiscovered".)

I've seen this clue in The Times.

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