Gent going around northern Thailand with cloak (6)
I believe the answer is:
mantle
'cloak' is the definition.
(mantle is a kind of cloak)
'gent going around northern thailand' is the wordplay.
'gent' becomes 'male' (I can't explain this - if you can you should believe this answer much more).
'going around' means one lot of letters goes inside another.
'northern' becomes 'n' (abbreviation e.g. N. Ireland).
'thailand' becomes 't' (abbreviation on car registration plates).
'n'+'t'='nt'
'male' placed around 'nt' is 'MANTLE'.
'with' acts as a link.
Can you help me to learn more?
(Other definitions for mantle that I've seen before include "A cloak, cover" , "Layer below earth's crust" , "Loose outer garment or covering" , "Cloak and shelf over the fireplace" , "Lament in loose cloak" .)