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 'suffering' mean this).
'canals'+'have'='canalshave'
'canalshave' with letters rearranged gives 'AVALANCHES'.

'in' acts as a link.

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

Want a hint initially instead of a full solution? Install my app