Related Clues:
- It's tough to find, but worth the effort
- Profitable success
- Source of profitable success
- Elusive pleasure zone
- Something to hit
- Vegas winnings
- Zone named for Dr. Grafenberg
- Big payoff
- Sexy zone first hypothesized in 1944
- The mother lode
- 1982 best seller subtitled 'And Other Discoveries About Human Sexuality,' with 'The'
- Miner success?
- Heart of a tennis racket
- The big pay-out - hit it
- Big win from one-arm bandit