Hints & Solutions Edit
Highlight the white text inside the block for hints ranging from vague to specific...
This is similar to the link puzzle.
Try to think of answers first, then see if ELF or FLE fits (obvious hint is obvious).
Viola's tale refers to a Shakespeare play.
Jason's quest uses "FLE".
Here are hints for each clue:
Jason's quest: uses FLE
Spongy custard desserts: FLE
It's seen in a looking-glass: FLE
"Heavenly" aquatic animal: ELF
Superficial injury: FLE
Antarctic platform: ELF
Romaine "flower": ?
Suffer no illness: ?
Outdoor bazaar: FLE
Puffy French dessert: FLE
Viola's tale: ELF
Jason's quest: GOLDEN(FLE)ECE
Spongy custard desserts: TRI(FLE)S
It's seen in a looking-glass: RE(FLE)CTION
"Heavenly" aquatic animal: ANG(ELF)ISH
Superficial injury: (FLE)SHWOUND
Antarctic platform: ICESH(ELF)
Romaine "flower": BOLTO(FLE)TTUCE
Suffer no illness: FE(ELF)INE
Outdoor bazaar: (FLE)AMARKET
Puffy French dessert: SOUF(FLE)
Viola's tale: TW(ELF)THNIGHT
The shaded letters spell SAINT NICHOLAS