stand for wood being sawn. Down 2 NUMBSKULL; (BUM SLUNK)* + L (= learner = 'apprentice') 3 ROME + O 4 HUCKLEBERRY - refers to Huckleberry Finn , creation of Mark Twain. 5 CARAMEL; R.A. in CAMEL 6 O.B. + I - 'OB' for 'old boy'. An 'obi' is a Japanese sash