Possible Clues:

• Spice from the fruit of Myristica fragrans
• Spice, mainly from Indonesia, made by grinding seeds of an evergreen tree
• Margaret supports 17dn maybe, a spicy item!
• Custard tart spice
• Enthusiast served up perfect example of spice
• Eccentric little woman bringing spice
• Fanatic say gets married in tree
• Myristica fragrans - or a Guardian cryptic crossword setter
• Stone cask over ground, it's used by bakers
• Component of pumpkin spice