Inquisitor 1713

[pomona]

The clue at each number is really two clues run together, one for each side of the
puzzle; either may come first. Pairs of clues are divided by a redundant letter to be removed
before solving, occasionally requiring changes to punctuation
12a Uncommitted inmate's not out with Sing-Sing after solemn promise, largely all-consuming (6)
16a Bard, in Perth, trousers about pound when overtone, the heart of usual, traditional lyric for audience neglected(5)
1d Transactions ongoing having a heaven-sent novel presses not rolling to start with anxieties (8)

[Neveracrossword]

12 Novice, uncommitted inmate (in a nunnery).
q Tractive, having a heave(n). Tensions.

It's a bit fiddly to parse, especially with the extra letters, so I haven't done it, sorry.

[Neveracrossword]

Sorry about 'q'! Those are the solutions to 1D.

[pomona]

Thank you Neveracrossword

[pomona]

i have SKALD for the 1st part of 16a Bard in Perth, trousers about pound when over. T is extra

[Neveracrossword]

Yes, Pomona, I had the same for 16 A.
The other part of 12 is Vorant, I think.