1. cistern   defect in eye or lens preventing proper focusing.   collection of stars or brilliant personalities.   confused state of mind.   reservoir or tank for water.   Hint Half-n-half Clue   2. conduit   reduction in size.   drug or treatment preventing infection.   maker of maps.   channel for fluid flow or aqueduct.   Half-n-half Clue   3. delta   attrition by rubbing or disagreement.   maker of maps.   small pricking tool for piercing holes.   triangular tract of mud or sand at river's mouth.   Half-n-half Clue   4. effluvium   maker of maps.   exhalation affecting smell.   conjecture or logical projection beyond range.   channel for fluid flow or aqueduct.   Half-n-half Clue   5. catalyst   correspondence or harmonious relation.   swirling motion of water or air.   agent to speed up chemical reaction without it changing.   mixture of things sticking together in a mass.   Half-n-half Clue   6. emollient   collarbone.   application that helps soothe or soften.   secret code used to encrypt messages.   deficiency of red blood corpuscles.   Half-n-half Clue   7. flux   continuous flow or series of changes.   exhalation affecting smell.   tree bearing fruit-cones.   absence of contradictions or uniformity.   Half-n-half Clue