Crossword Genius

Clans have a problem with hurtling masses of snow (10)

Ross

I believe the answer is:

avalanches

I'm a little stuck... Click here to teach me more about this clue!

'hurtling masses of snow' is the definition.
I can't judge whether this definition defines the answer.

'clans have a problem' is the wordplay.
'problem' indicates an anagram.
'clans'+'have'+'a'='clanshavea'
'clanshavea' is an anagram of 'AVALANCHES'.

'with' is the link.

Can you help me to learn more?

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

I've seen this clue in The Irish Times.
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