Crossword Genius

Thick socks might be the cure for this failure of courage (4,4)

Ross

I believe the answer is:

cold feet

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'thick socks might be the cure for this failure of courage' is the definition.
The definition suggests a singular noun which matches the answer.

This is all the clue.

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(Other definitions for cold feet that I've seen before include "Loss of courage or confidence" , "Feeling of fear - in lower extremities?" , "Apprehensiveness" , "result of paddling in winter ?" , "You might have them if you're afraid to proceed" .)

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