When I get a lot of terrain (4)
I believe the answer is:
asia
'lot of terrain' is the definition.
The answer and definition can be both locations as well as being singular nouns.
Perhaps they are linked in a way I don't understand?
'when i get a' is the wordplay.
'when' becomes 'as' (eg 'when I walked' means 'as I walked').
'get' is a charade indicator (letters next to each other).
'as'+'i'+'a'='ASIA'
Can you help me to learn more?
(Other definitions for asia that I've seen before include "Major land mass" , "Huge landmass" , "group of countries" , "Earth's largest continent" , "The nations of the East, collectively" .)