Crossword Genius

When discussing failure, is more relaxed (6)

Ross

I believe the answer is:

looser

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'more relaxed' is the definition.
(I've seen this in another clue)

I don't understand how the rest of the clue works.

Can you help me to learn more?

(Other definitions for looser that I've seen before include "Rather inaccurate" , "less secure" .)

I've seen this clue in The Hindu.
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