Crossword Genius

Our pile’s wobbly, threatening (8)

Ross

I believe the answer is:

perilous

'threatening' is the definition.
(thesaurus)

'our pile's wobbly' is the wordplay.
'wobbly' indicates anagramming the letters.
'our'+'piles'='ourpiles'
'ourpiles' is an anagram of 'PERILOUS'.

(Other definitions for perilous that I've seen before include "Fraught with danger" , "Risky" , "promising danger" , "Extremely dangerous" , "Full of danger" .)

I've seen this clue in The Independent.
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