I'm afraid I was taught 3 x crosswind allowance outbound up to a max of 30deg, though I don't know of a clockface method. (The max 30deg is to make sure you don't get outside the 'protected' area for the hold, though in a light aircraft that's pretty unlikely!).
What method are you using to calculate the crosswind allowance?
Tim
(edited to add: my post crossed with drauk's but I was taught a 1/6ths rule which is basically the same as his: 10 deg off, 1/6 of the wind, 20deg off, 2/6, all the way up to 60deg off, 6/6, after that keep using it all. Obviously also applies to takeoff crosswind.)