Landing-gear less to carry (9)

I believe the answer is:

undercart

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'landing-gear' is the definition.
I can't tell whether this definition defines the answer.

'less to carry' is the wordplay.
'less' becomes 'under' (I've seen this in other clues).
'to carry' becomes 'cart' (carting is a kind of carrying).
'under'+'cart'='UNDERCART'

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I've seen this clue in the Sydney Morning Herald.

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