Crossword Genius

Fire set to a lab on freight carrier (5,4)

Ross

I believe the answer is:

canal boat

I'm a little stuck... Click here to teach me more about this clue!

'freight carrier' is the definition.
The definition suggests a singular noun which matches the answer.

'fire set to a lab' is the wordplay.
'fire' becomes 'can' (dismiss from job).
'set' indicates anagramming the letters (instruction to set the letters).
'to'+'a'+'lab'='toalab'
'toalab' with letters rearranged gives 'alboat'.
'can'+'alboat'='CANAL-BOAT'

'on' acts as a link.

Can you help me to learn more?

(Other definitions for canal boat that I've seen before include "Waterways vessel" , "One for inland water cruising" , "Inland waterway vessel" , "Narrow vessel" , "craft?" .)

I've seen this clue in The Hindu.
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