Traveller that is carrying the can, getting harangue (9)
I believe the answer is:
itinerant
'traveller' is the definition.
(itinerant is a kind of traveller)
'that is carrying the can getting harangue' is the wordplay.
'that is' becomes 'ie' (synonyms).
'carrying' means one lot of letters goes inside another.
'the can' becomes 'tin' ('tin' can be a synonym of 'can').
'getting' is a charade indicator (letters next to each other).
'harangue' becomes 'rant' (synonyms).
'ie' enclosing 'tin' is 'itine'.
'itine'+'rant'='ITINERANT'
(Other definitions for itinerant that I've seen before include "Old labourer/traveller who travelled from place to place" , "Tramp" , "Travelling around" , "(Person) on the move" , "Travelling from place to place" .)