Parrot concerned with boggy soil (6)
I believe the answer is:
repeat
'parrot' is the definition.
(I know that parrot is a more specific form of the action repeat)
'concerned with boggy soil' is the wordplay.
'concerned with' becomes 're' ('re' means regarding or about).
'boggy soil' becomes 'peat' (peat is soil-like matter).
're'+'peat'='REPEAT'
(Other definitions for repeat that I've seen before include "Echo words" , "Say again, or belch (6" , "Go over" , "Duplicate" , "old TV show" .)