The lead is the ♣A
Your p is either a strong believer in canape openings, or had a Heart in with the Diamonds. Either way you end up in 4♥ on the lead of the ♣A.
First 3 tricks are:
♣A ♥8 ♣9 ♣4
♦A ♦2 ♦3 ♦6
♦K ♦8 ♣5 ♦J
what next? (if you ask, opps play udca)
Spoiler