In short, anyhow, once caught is put inside (7)
I believe the answer is:
concise
'in short' is the definition.
'concise' can be an answer for 'short' (similar in meaning). I'm unsure of the 'in' bit.
'anyhow once caught is put inside' is the wordplay.
'anyhow' indicates anagramming the letters.
'caught' becomes 'c' (cricket abbreviation).
'put inside' means one lot of letters goes inside another.
'once'+'c'='oncec'
'oncec' anagrammed gives 'conce'.
'conce' enclosing 'is' is 'CONCISE'.
Can you help me to learn more?
(Other definitions for concise that I've seen before include "Short and clear" , "Compact - brief" , "Using few words" , "Brief but comprehensive" , "Involving few words" .)