Crossword Genius

Current makers of maps (4)

Ross

I believe the answer is:

amps

I'm a little stuck... Click here to teach me more about this clue!

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

'makers of maps' is the wordplay.
'maps' can be anagrammed to 'AMPS'.
Though, I am unsure how the anagram is indicated.

Can you help me to learn more?

(Other definitions for amps that I've seen before include "Current measures" , "'Units of electric current, in short (4)'" , "Basic units of electric current" , "Units of electrical power" , "concert gear" .)

I've seen this clue in the Evening Standard.
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