One loses one's head when in a corner (5)

I believe the answer is:

ingle

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'a corner' is the definition.
(I have seen 'Warm corner' mean 'ingle' so perhaps 'corner' could also mean 'ingle')

I don't understand the remainder of the clue.

Can you help me to learn more?

(Other definitions for ingle that I've seen before include "Fireplace in a room" , "warm part of house" , "Warm corner" , "Kind of fireplace - get leg in" , "Fire - fireplace" .)

I've seen this clue in The Globe and Mail.

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