Bid four spades.
With only 11 points? Yes, because with as little as six points in partner's hand, you might be laydown! And how is he to judge?
Notice that you didn't use all six points. This hand is living proof that trumps is the name of the game. The best way to judge a hand like this is to use a simple rule: don't put pressure on your partner by making a game try when there are lots of minimums he will have that will produce game.
As for those of you who did not even try for game, use this hand as a lesson when to stop counting points and start counting tricks: when you find a good trump fit.
Four spades = 10
Three clubs = 5
Three spades = 3
Pass = 0
Bridge Today, Sep-Oct 1993, p. 8