Related Clues:
- Word that can precede the first parts of 17- and 60-Across and 11- and 35-Down
- Leaders deserting the navy -- that's hard to bear
- Opposite of light
- Weighing a lot
- Difficult and tiring
- Overweight villain in film
- Demanding couple in a hurry should stop short
- Tough couple moving into Arkansas, America
- Ponderous villain on stage
- Tough resistance with pair in Australia
- Deeply personal feeling in fat cat, perhaps can end in sacking
- Strenuous, gruelling
- Separating from popular duo usually testing
- Demanding considerable mental effort and skill
- Like anvils