Please help me to get started!!
1a) Work of Sweeney Todd, controversial musical, censored.(7)
5a) Failing to join the opposition (6)
1d) Fool's best-seller hides terrible flaw (7)
Apology for having no letters.
Good morning and thankyou dannyk13 and mojay.
12a) Anti-Brussels neurotic lost head over small fungus (11)
16a) It sucks in half of mere mortals at sea (9)
16d) Initially minor issue disrupted poor treatment (6)
Thank you again.