Ruinous price for a ring (4)

I believe the answer is:

toll

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This clue might be a double definition.

'ruinous price' is the first definition.
'toll' can be an answer for 'price' (thesaurus). I am not sure about the 'ruinous' bit.

'ring' is the second definition.
(a bell tolls)

'for a' is the link.

Can you help me to learn more?

(Other definitions for toll that I've seen before include "Payment imposed for the use of a public road" , "Bridge or road tax" , "Be inclined" , "Charge for using, eg, road" , "Bridge or road charge" .)

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

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