First off, do you raise to 5♦ here? Do you bid 5♣ along the way, or make a cue-bid?
Secondly, how do you play 4♦ or 5♦, at MPs, on this layout and the lead of the ♣A, followed by a spade round to the J? It's now clear that partner's double of 1♥ was... eccentric, but you're in a contract and you can't always choose them!