Right on target! Sweet! (5-3)

I believe the answer is:

bulls-eye

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But I can't explain it at all! Could you help me understand?

(Other definitions for bulls-eye that I've seen before include "Window - sweet" , "Dead centre - Bill Sikes's dog - sweet" , "Centre of darts board" , "Large peppermint sweet" , "Target's centre" .)

I've seen this clue in The Hindu.

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