Fresh mine disturbed by those who trawl for a living, perhaps (9)

I believe the answer is:

fishermen

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'by those who trawl for a living perhaps' is the definition.
I can't judge whether this definition defines the answer.

'fresh mine disturbed' is the wordplay.
'disturbed' indicates anagramming the letters (the order of letters is disturbed).
'fresh'+'mine'='freshmine'
'freshmine' anagrammed gives 'FISHERMEN'.

Can you help me to learn more?

(Other definitions for fishermen that I've seen before include "Catchers of sea creatures" , "Anglers, say" .)

I've seen this clue in The Irish Times.

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