Dentist's coup and stepping-stone missed by declarer

There are variations in play for the first five tricks, and I pass without comment on declarer's strategy for the first few tricks. But look at the end-position after 5 cards are played. Defence has come to 2 tricks, seems to have clubs well controlled and are threatening to set up diamonds. However, if declarer reads my (abhirar's) distribution, (instead of the spade to the nine and ten going down) he can play either a spade to the ace or a low club from hand!!
His strategyis to endplay me to give dummy's nine of spades a trick after stripping me of two hearts and my remaining diamond.
Say he plays a low club from hand. Say I win CQ and exit diamond. Declarer plays a spade to the Ace dropping my partner's ten, cashes two hearts, club to the ace, dentist coup in three suits! now playing his last spade, I have to give dummy the ninth trick in spades.