| Major broadcaster in Britain |
BBC |
| Mama's boy, to mom |
SON |
| Mates of mas |
PAS |
| Mighty tree |
OAK |
| Milky-white gem |
OPAL |
| Misbehaving child |
BRAT |
| Night twinkler |
STAR |
| Not those |
THESE |
| Olympics sword |
EPEE |
| Opera solo |
ARIA |
| Opposite of old |
NEW |
| Part of a flight of stairs |
STEP |
| Partner of "ooh" |
AAH |
| Partnership |
CAHOOT |
| Popular cookie type |
OREO |
| Rower's tool |
OAR |
| Second-year students, for short |
SOPHS |
| See 15-Across |
TAN |
| Shadow produced by an eclipse |
PENUMBRA |
| Skinny guy, in slang |
BEANPOLE |
| Sleek fabric |
SATEEN |
| Soloist's number |
ONE |
| Suffix with hard or soft |
WARE |
| Thai language |
LAO |
| Things that inhibit teamwork |
EGOS |
| Trips around a track |
LAPS |
| Type of vaccine |
ORAL |
| Very tiny amount |
IOTA |
| Weep |
SOB |
| When doubled, one of the Society Islands |
BORA |
| Wooden things to hang hats upon |
PEGS |
| Word shouted that's meant to frighten |
BOO |
| Worthless cloths |
RAGS |
| ___ out a living (just get by) |
EKE |