Related Clues:
- ___ 8 [grumble]
- Remark that breaks the fourth wall
- Actor's remark to the audience
- Speaker's amplifying aid, briefly
- Object for 9-Across
- Abbr. on an input jack
- "All kidding __ ..."
- Play byplay
- Amp plug-in
- 'Don't Be Cruel' vis-à-vis 'Hound Dog'
- MC's aid
- Ringing phone on stage, e.g.
- "All joking ___ ..."
- Lapel attachment, on talk shows
- Stereo jack letters