Related Clues:

• Greek equivalent of the letter I
• No more than a smidgen
• Vowel for Plato
• Tiniest bit of the Greek alphabet?
• Bright spark that is in work before afternoon
• Little bit of Greek?
• Greek letter provides very little
• Fishy star finally turns up at ten
• Barman in with tall one tentatively for tiny amount
• Small taste or, pronounced aloud, a hint to this puzzle's theme
• Very small amount, a jot
• Slight but appreciable amount
• Merest amount
• Subtle amount
• Perhaps I can still sparkle