Canals have suffered in falls (10)

I believe the answer is:

avalanches

'falls' is the definition.
(avalanching is a kind of falling)

'canals have suffered' is the wordplay.
'suffered' indicates anagramming the letters (I've seen 'suffers' mean this).
'canals'+'have'='canalshave'
'canalshave' is an anagram of 'AVALANCHES'.

'in' is the link.

(Another definition for avalanches that I've seen is " Unstoppable destroyers".)

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