---

All answers having "Broadcast" as clue:

3 Character Answers:

---

AIR

RUN

SOW



4 Character Answers:

---

BEAM

EMIT

NEWS

ONTV

SEND

SENT

SHOW

SOWN



5 Character Answers:

---

AIRED

AUDIO

RADIO

SOWED

STREW



6 Character Answers:

---

AIRING

BEAMED

SPREAD

STREWN



7 Character Answers:

---

BESTREW

RELAYED

STREWED



8 Character Answers:

---

ANNOUNCE

TELEVISE

TRANSMIT



9 Character Answers:

---

SCATTERED

TELEVISED



10 Character Answers:

---

GOONTHEAIR

PROMULGATE



12 Character Answers:

---

TRANSMISSION