Discard in hand with short side suit

Discard in hand with short side suit

Q J 7 6
7 6 5 2
A 5 4
5 4
N
W   E
 
S
A K 8 4 3 2
A 4 3
K 6
3 2

Contract:

3 by South

Lead:

K

West starts with two high clubs, but misreads partner's signals and leads another club. How do we take advantage?