There was some kind of missunderstanding, 4♣ seemed like 0454 for south, and cue for north, then 4♠ was nothing in ♠ for south, while it was cue for the other (still an overbid probably).
West leads the ♣10, you duck with the hope he has no more ♣s and it is not overtaken, but west continuues with ♣9 (East plays the ♣K).
How do you plan to make this?.

Help

E - S - W - N
1♣-1♦-1♠-ps
1NT-2♥-2♠-3♥
3♠-4♣-ps-4♠
ps-6♥-ps-ps
ps