Underdog, abused but connected to reality (8)

I believe the answer is:

grounded

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

'connected to reality' is the definition.
I can't tell whether this defines the answer.

'underdog abused' is the wordplay.
'abused' indicates anagramming the letters.
'underdog' with letters rearranged gives 'GROUNDED'.

'but' acts as a link.

Can you help me to learn more?

(Other definitions for grounded that I've seen before include "Punished teenager by confining to house - poor underdog" , "Prevented from flying" , "Not allowed to fly" , "prevented from leaving home" , "Earthed" .)

I've seen this clue in The Guardian.

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