Crossword Genius

Bad person's object of worship set up as one outshining the rest

Ross

I believe the answer is:

dog star

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

'one outshining the rest' is the definition.
Although both the answer and definition are singular nouns, I don't understand how they can define each other.

'bad person's object of worship set up' is the wordplay.
I cannot really understand how this works, but
'person's' could be 'dogs' (dog is a kind of person) and 'dogs' is present in the answer.
'object' could be 'ta' (Ta is an example) and 'ta' is found in the answer.
A single letter 'r' remains which might be clued in a way I don't see.
This may be the basis of clue (or it may be nonsense).

'as' is the link.

Can you help me to learn more?

(Other definitions for dog star that I've seen before include "heavenly body?" , "Drags to find other name for Sirius" , "night-spot, getting high" , "Night light" , "Canine constellation" .)

I've seen this clue in The Telegraph.
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