Crossword Genius

Identify personal pong this won't cure? (7)

Ross

I believe the answer is:

placebo

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

'cure?' is the definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Perhaps they are linked in a way I don't understand?

I can't explain the rest of the clue.

Can you help me to learn more?

(Other definitions for placebo that I've seen before include "Medicine given solely for psychological effect" , "patient gratified to receive such" , "Something used to calm or humour a person" , "Inactive control used in drug testing" , "Medicine that's not" .)

I've seen this clue in The Sun.
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