Related Clues:

• When tripled, cry near the end of 39-Across
• Little, like laddies
• Minute kind of clock
• Leprechaun-sized
• Small, to a bagpipes player
• (and 19) Group heard, I see, between a cat and its 23
• Very small modification made to mica
• First volume in account of a sort of number
• Geometry I can deploy for derivation of power
• As 33 anagrams can to Brummie?
• A cat first with cat's first baby?
• Small leak
• Relating to basic particles
• Sort of energy or number
• Sort of bomb, number, or power