Crossword Genius

Discharge fellows and they can go to blazes! (7)

Ross

I believe the answer is:

firemen

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'they can go to blazes' is the definition.
The definition suggests an adverb but the answer is not.

'discharge fellows' is the wordplay.
'discharge' becomes 'fire' (synonyms).
'fellows' becomes 'men' (fellow can mean a man).
'fire'+'men'='FIREMEN'

'and' is the link.

Can you help me to learn more?

(Other definitions for firemen that I've seen before include "They fight conflagrations" , "Hose wielder" , "Stokers" , "Their job is to extinguish conflagrations" .)

I've seen this clue in the Evening Standard.
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