Would LHO make the mistake of leading the suit that her partner had doubled? Sadly not - she held ♣AKxx and naturally felt that this might be a better shot.
I confess to being opener on this hand, and perhaps my bidding was influenced by already being on about -55 by this point. But still, it all felt a bit unlucky.
How would you get this right? You are playing with a good partner but without extensive agreements; cue-bids would generally show either first or second round control. The 2♦ response was an almost-forced relay (maybe not best here but that was the system); 5♣ showed 1 or 4 key-cards. (And yes, I know perfectly well that you don't generally bid Blackwood with a void, so please don't tell me that unless you're going to offer a better idea.)