Yes... <hide>the clue should be read as a double definition</hide>
And, irritatingly, no... <hide>Nothing to do with depression - this may be a clue too far, but it's not "bust 'down reason'", but rather "'bust down' reason"</hide> HTH. (But not really.) :oP
[rab] You're absolutely right about "More?" -- I am of the school that is generally Ximenean, but will make an exception for a good enough clue. Which "More?" isn't -- and I think I acknowledged as much when I set it. As for the bust clue, I don't think you are on the right track. The structure of the clue is: essentially double definition, but with each word having a different sense in the two definitions. One of the definitions clues the answer, the other clues a phrase.
[CdM, Martha] Thanks for the help without managing to give the game away - I'm not sure if I'll get this. The preview/simulpost problem is noted, and I'll try and sort it out at the weekend.