Related Clues:
- Have a cow, so to speak
- Become wild
- Come undone
- Lose it, and a hint to the last words of 18-, 27-, 48- and 63-Across
- Throw a wobbly, say, over imprisoning pensioner
- Become crazy and take shot at primate
- Lose it altogether
- Get really excited
- What Tarzan's friends advised him to do?
- Lose your marbles
- Freak out and stare with mouth open over nothing
- Try to take off, but freak out
- Get really excited or mad
- Lose one's cool completely
- Act bonkers