Hire map-maker? (7)
I believe the answer is:
charter
'hire' is the definition.
(I know that hire can be written as charter)
'map-maker?' is the wordplay.
'map' becomes 'chart' (chart is a kind of map).
'maker?' becomes 'er' (I am not sure about this - if you are sure you should believe this answer much more).
'chart'+'er'='CHARTER'
Can you help me to learn more?
(Other definitions for charter that I've seen before include "Let or hire a ship or aircraft" , "Written grant; hire" , "Hire - document granting privileges" , "Let or hire a ship or plane" , "Written constitution" .)