Cryptic Crossword

12345
Across
  1. 4. Find Leroy by wedding reference book and Ivy League (12,5)
  2. 5. Fictional enterprising lad uncovers dodgy affairs (5)
Down
  1. 1. Yearn for sweet pancake syrup sliced by R (4, 6)
  2. 2. Reagan spouse sketched titian-haired teen (5, 4)
  3. 3. Britisher and lockpick in fractions meet what sounds like abodes (8, 6)