Gunners pursuing doctor through Czech region (7)
I believe the answer is:
moravia
'region' is the definition.
(I've seen this before)
'gunners pursuing doctor through czech' is the wordplay.
'gunners' becomes 'ra' (Royal Artillery).
'pursuing' means one lot of letters go next to another.
'doctor' becomes 'mo' (medical officer).
'through czech' becomes 'via' (I can't justify this - if you can you should believe this answer much more).
'ra' after 'mo' is 'mora'.
'mora'+'via'='MORAVIA'
Can you help me to learn more?
(Other definitions for moravia that I've seen before include "part of Czech Republic" , "Area of the Czech Republic" , "Italian writer - Czech region" , "Region in Czech Republic" .)