| Intro deliverers |
MCS |
| Jeweler's purity unit |
KARAT |
| Last letter of a pilot's alphabet |
ZULU |
| Let go |
UNLOOSE |
| Like some ancient calendars |
LUNAR |
| Living thing |
BEING |
| Make responsible for, as chores |
ASSIGN |
| Mark similar to a hyphen |
ENDASH |
| Movie equipment |
CAMERAS |
| Mummy's home |
TOMB |
| Novelist Umberto |
ECO |
| Performed really poorly |
STANK |
| Period of meaningful interaction |
QUALITYTIME |
| Planck's Nobel prize-winning formulation |
QUANTUMTHEORY |
| Reduce to mist |
ATOMIZE |
| Reservations |
QUALMS |
| San __ Obispo, California |
LUIS |
| Scooby-__ |
DOO |
| Sharply delineated, as a contrast |
STARK |
| Short outing for a jogger |
MILERUN |
| Shrek, for one |
OGRE |
| Small musical interval sung in choral warmups |
QUARTERTONE |
| Soul, to Zola |
AME |
| Start to practice? |
MAL |
| Stephen of "The Crying Game" |
REA |
| Sudden wind |
GUST |
| Surreptitiously ... and a hint to 20-, 28-, 46- and 52-Across |
ONTHEQT |
| Syria neighbor |
IRAQ |
| Take to court |
SUE |
| Teach a skill to |
TRAIN |
| The smile on a smiley face, say |
ARC |
| Traditional Yuletide quaff |
WASSAIL |
| Very much |
ALOT |
| Waiting room waiters |
PATIENTS |
| Walk on a bad knee, say |
LIMP |
| Where to leggo your Eggo? |
TOASTER |
| __ de cacao |
CREME |
| __ Lanka |
SRI |
