Master plan, initially? (3)

I believe the answer is:

map

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'master plan initially?' is the definition.
I can't tell whether this definition defines the answer.

'master plan initially?' is the wordplay.
'master' becomes 'ma' (Master of Arts).
'initially?' says to take the initial letters (I've seen 'initially' mean this).
The first letter of 'plan' is 'p'.
'ma'+'p'='MAP'

Can you help me to learn more?

(Other definitions for map that I've seen before include "Chart" , "Representation of earth's surface as a guide" , "Geographical plan" , "Diagram of an area" , "face" .)

I've seen this clue in the Evening Standard.

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