Mineral ordered for train drivers etc (7)

I believe the answer is:

railmen

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'train drivers etc' is the definition.
I know nothing about this answer so I can't judge whether it can be defined by this definition.

'mineral ordered' is the wordplay.
'ordered' indicates anagramming the letters.
'mineral' is an anagram of 'RAILMEN'.

'for' is the link.

Can you help me to learn more?

(Other definitions for railmen that I've seen before include "On-line workers" , "They've made tracks" , "Train under their supervision" .)

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