[Pervinca Took]

MARJORAM: March girl trapped between mirrored ewes’ mates yields substance fit to perfume a gondola.
2. Place of clichéd strife changes ending after an early start. Soft as elven-rope, it is!
3. Dog lit for a chewy, monotonous troll-feast.
4. Endure (though shaken) it did, at the bottom of Sam’s pack!
5. Isengard pudding and Denethor’s fate.
APPLES: Article signed on behalf of bad pianist yields fruit (possibly resembling Laurelin’s?)
7. Projected time – jumbled – which yields this – is four o’clock.
8. Fabled cathedral (or village?) loses consecration and is initially changed for siphonable comestibles.
9. Endless chatter! Gollum provides this.
10. Wise was Sam to seek this fragrant stuff.

Indeed - the mariner's perfume of choice, alongside Lynx Africa and Old Spice (I mean cardamom and lavender).

Jo March is the second eldest of the March girls in Louisa M Alcott's 'Little Women' and the three sequels, and generally considered the heroine/most closely drawn character, of the first two books at least. It's a fictional surname.

EDIT FOR SECOND CLUE GUESSED (near enough):

Remember that fruit can be plural, or at least 'uncountable.' The answer is APPLES, so you were near enough. A + PP is as you say. As for LES - are you from the UK? Just as Tommy Cooper skilfully performed magic tricks badly, there was a comedian who made bad piano-playing a major part of his act: Les Dawson.