Concluded it was uncommonly cold around the Kentish area (6)
I believe the answer is:
closed
'concluded' is the definition.
(to close something is to conclude it)
'uncommonly cold around the kentish area' is the wordplay.
'uncommonly' indicates anagramming the letters.
'around' means one lot of letters goes inside another.
'the kentish area' becomes 'SE' (South East of England).
'cold' with letters rearranged gives 'clod'.
'clod' placed around 'se' is 'CLOSED'.
'it was' is the link.
This may not be right. Some or all of it may belong to another bit of the clue.
Can you help me to learn more?
(Other definitions for closed that I've seen before include "Resolved" , "Terminated" , "Not longer open" , "restricted" , "Shut" .)