Brief report round mid March (5)
I believe the answer is:
short
'brief' is the definition.
(similar in meaning)
'report round mid march' is the wordplay.
'report' becomes 'shot' (I can't explain this - if you can you should believe this answer much more).
'round' is an insertion indicator.
'mid' indicates the central letters.
The middle of 'march' is 'r'.
'shot' going around 'r' is 'SHORT'.
Can you help me to learn more?
(Other definitions for short that I've seen before include "Cause to blow a fuse" , "Curt" , "Terse; in insufficient supply" , "Small in height" , "Concise" .)