Crossword Genius

Agree map at sea would show strength of current (8)

Ross

I believe the answer is:

amperage

'strength of current' is the definition.
(I've seen this before)

'agree map at sea' is the wordplay.
'at sea' indicates anagramming the letters.
'agree'+'map'='agreemap'
'agreemap' anagrammed gives 'AMPERAGE'.

'would show' acts as a link.

(Other definitions for amperage that I've seen before include "Strength of current" , "current measure" .)

I've seen this clue in The Guardian.
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