Point thread out that’s touching the ground (7)

I believe the answer is:

earthed

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'that's touching the ground' is the definition.
I can't judge whether this definition defines the answer.

'point thread out' is the wordplay.
'point' becomes 'e' (E is an example).
'out' indicates an anagram (out can mean wrong or inaccurate).
'thread' anagrammed gives 'arthed'.
'e'+'arthed'='EARTHED'

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(Other definitions for earthed that I've seen before include "protected from shock" , "attached to the ground" , "grounded" .)

I've seen this clue in The Mirror.

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