2: Object to professional examination (7)
3: Nits are possibly more unpleasant (7)
4: Bill accepts new slant in Jack's Magic Ladder? (9)
5: Discover merit after first lesson (5)
6: With Pat, I persevere, biting back final words? (7)
7: I misread _Times_ article's final detail (7)
8: Poplar is like a writer (5)
9: 'Beat it, mister!' said con man (7)
13: How might thirteen yearn to meditate? (4,5)
17: Fishy character with endless alibis hides in hut. (7)
18: Batsmen trading one who may be a winner? (4,3)
20: Cretins wrecked the water tank! (7)
21: Those emptying the boat of water start to belittle those who are seasick? (7)
22: Comic embraces date at end of Fourth Dimension (5)
23: Meal for 4 divided by 50 (5)