People here are often told to go to blazes (4,7)
I believe the answer is:
'to blazes' is the definition.
I know that 'blazes' relates to this answer.
'people here are often told to go' is the wordplay.
I cannot quite see how this works, but
'are' could be 'a' (the 'are' is a metric unit of area) and 'a' is present in the answer.
'to go' could be 're' (I've seen this in other clues) and 're' is located in the answer.
This may be the basis of clue (or it may be nonsense).
(Another definition for fire station that I've seen is "Brigade HQ?".)