Guardian Prize

[Marienkaefer]

Stuck on last one - lh 5 down which is Conservatory, not round, was off-centre getting TU's agreement (I have go the second part). .e.a.t

[Johnh42]

Lean to without the o giving leant but enter levant

[Farrwest]

Help appreciated!
15a(R) to sleek appearance with special purity (11) ?????l???s?
13a(L) Character from Italian seaport, chorister (9) ?????t?a?
9d (L) Courtroom subtlety genetically engineered (5,6)
1a (L) Was heartless, left (7)

[scorpiojo]

9d anagram of genetically
13 singing voice with extra letter....your a is wrong
1a word for was minus its middle letter to give a word for left..then add a letter

[scorpiojo]

15 is next to Godliness

[Farrwest]

Thanks scorpiojo. Still someway to go!