Azed 2111

[Neveracrossword]

I'm attempting my first ever 'letters latent' puzzle and finding it tough. A little kick-start might help.
10 A. Sending up agent in grotesque (11) ???p?????
15 D. Australian songster: money offer inveigles one with hits coming up (11) ??s?l????

The omission of letters means I can't do my usual thing of writing lists, trying to fit in letters etc.

[cinnabar]

The quotation isn't in my ODQ 6th edition 2004, but it's easily found online.
Can anyone explain 25 Down, please? I've got PELE for the Scottish palisaded enclosure, and I think the unmutilated version must be PETTLE. But I can't find a definition for the word that looks remotely like 'ruin'?

[dr b]

Pettle and ruin can both mean to overindulge or spoil.

[cinnabar]

Ha! Thank you kindly, sir - I hate it when I'm not quite sure why (or indeed whether) an answer is right!

[OlimV]

Anyone still looking this? I am stuck with a lot of blanks in the NW corner. I have 1D which gives me R as the start letter of 1A but then??? My thinking is that the clue definition is returned which would have to have three letters the same -- restituted but and entry of resued is difficult to justify as I take the word play to be a synonym of coat round (sheltering) an Olympic winner in the pentathalon, heptathalon or decathalon (versatile). The clue definition can not be a ten letter athlete as this would not be in Chambers (yes I know, this is not the entry but the rule still applies). Got a cold (at least you can't catch it online) so may be I am missing something obvious. If so please give me a clue as to waht it is

[kayakamina]

(T) ria (t) hle (t) e

[Flyhalf]

I've been away since Saturday, and unable to get round to it.
Managed about four so far, but unlikely to go on (been in contact with norovirus, and ahve started vomiting - fortunately Mrs J is away until Sunday, and can't be infected).

[OlimV]

Many thanks kayakamina, great crossword.