If you look at previous postings, esp. from Aristo + my replies, I think it's now pretty easy:the expression is more often completed with " a fuss", and the "red herring" in the clue is "mine": not possessive pronoun but noun > synonym! Hope Ixion isn't mad with me, but it literally kept me awake for hours,too! The hint for the complete 9-letter word is also contained within the clue!Don't get into a tantrum like the baby described: actually it's easy, of course, when you see it --- that's why I can't be annoyed with the setter in the end!