Crossword Genius

Map makers or graph creators, possibly (13)

Ross

I believe the answer is:

cartographers

'map makers' is the definition.
('cartographer' can be a synonym of 'map maker')

'graph creators possibly' is the wordplay.
'possibly' indicates an anagram.
'graph'+'creators'='graphcreators'
'graphcreators' is an anagram of 'CARTOGRAPHERS'.

'or' is the link.

(Another definition for cartographers that I've seen is " Map makers".)

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