Saw tonne being transported (5)

I believe the answer is:

tenon

'saw' is the definition.
(I've seen this before)

'tonne being transported' is the wordplay.
'being transported' is an anagram indicator.
'tonne' anagrammed gives 'TENON'.

(Other definitions for tenon that I've seen before include "Wooden projection shaped to fit in a mortise joint" , "Type of hacksaw" , "Mortise extension" , "piece of carpentry?" , "Join" .)

I've seen this clue in The Daily Express and The Mirror.

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