Related Clues:
- Ante up
- Make an entrance
- Play a hand
- Try to mediate, perhaps
- ''Whole Lotta Shakin' ___ On''
- Get involved
- Decide to participate
- Form an alliance (with)
- Do more than mediate
- Get involved with someone else's business
- Walk through the door
- Pass the threshold
- Shoe without laces, e.g.
- "__ Out of My Head": 1964 hit
- Antonym of withdraw