1: Object to professional examination (7)
2: The end, you say? On the contrary! (3)
3: Rise as in throw, perhaps, showing fitness to fly (13)
4: Get by heroes? It's unlikely (7)
5: Reportedly, looked at sea serpent as exemplar (5)
6: Assistants' crackpot ideas (5)
9: I had left mule, finally, and right loafer (5)
10: See its violent broadcast? (10,3)
16: Satanic personification in 'Anthem A-Gogo' (5)
18: Uncompromising joke about Ms. Hayworth (7)
19: Deputy at clock centre sounds hesitant (5)
20: Show fear when beast appears on popular TV series (5)