British mountain peak not foremost place for navigational equipment (8)

I believe the answer is:

binnacle

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'equipment' is the definition.
(thesaurus)

I don't understand how the remainder of the clue works.

(Other definitions for binnacle that I've seen before include "Housing for ship's compass" , "Casing for ship's compass" , "It houses a ship's compass" , "Compass location" , "Clean bin to hold ship's compass" .)

I've seen this clue in The Independent.

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