Empty large car? Earth cost appalling! (7,7)

I believe the answer is:

chelsea tractor

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'empty large car? earth cost appalling' is the definition.
I know nothing about this answer so I cannot judge whether it can be defined by this definition.

'empty large car? earth cost appalling' is the wordplay.
'empty' suggests removing the centre.
'appalling' is an anagram indicator (an appalling spelling of the letters).
'large' with its middle removed is 'le'.
'le'+'car'+'earth'+'cost'='lecarearthcost'
'lecarearthcost' with letters rearranged gives 'CHELSEA TRACTOR'.

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(Another definition for chelsea tractor that I've seen is " Huge 4WD".)

I've seen this clue in The Guardian.

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