Cryptic overlaps

Alignment?

Yup. Go.

Treebeard hiss sound inspires bassist. (9)

ENTWHISTLE (Ent + whistle)

+++++

Pope might have been altogether set to meet, Hun. (2, 3, 3, 5)

Missed the edit window: TIL that John Entwistle didn’t use an “H” in his surname.

ENTWISTLE

Same follow-on clue.

Pope might have been altogether set to meet, Hun.

ST LEO THE GREAT (altogether set*)

+++++

A circus where a ghost threatens to perform. (3, 8, 4, 2, 5)

THE GREATEST SHOW ON EARTH

+++++

You better cross your heart! (6)

THREAT (T+heart)
++++++

Rebuilt atrium is serving dessert.(8)

TIRAMASU (anagram)


Excellent dialogue is shrunk and moved up. (11)

Superceding?

I’m stumped on the follow-on clue, but I can’t resist a spelling correction: TIRAMISU.

The “Super” part is correct.

The overlap still works despite my misspelling.

Hint

The answer is a feature of typography

SUPERSCRIPT

++++

Winged finger entombed at old Eastern crypt (11)

PTERODACTYL (anagram)
++++++

Hidden in the Book of Revelations (6)

Latent?

I am sure that’s it because the Book of Revelations is late in the NT (New Testament).

In lieu of a rebuttal, I’ll go with it.

Off LATENT:

Sycophants in essence reinvent our age. (9)

Thanks for the breakdown Biotop!

ENTOURAGE (hidden)
+++++

FBI member didn’t start talking to the district attorney until it fit into his schedule.(6)

AGENDA (agent - t + DA)


Reindeer only uses “T” in Morse Code. (6)