1. supporting bar in framework or pompous walk.   medium   solstice   strut   quadruped   Hint Half-n-half Clue   2. universal remedy or cure-all.   quagmire   panacea   pachyderm   magnitude   Half-n-half Clue   3. outer boundary for closed figure.   spectrum   perimeter   velocity   solvent   Half-n-half Clue   4. discovery by accident.   serendipity   vortex   symbiosis   perigee   Half-n-half Clue   5. substance which provides nourishment.   torque   microcosm   momentum   nutrient   Half-n-half Clue   6. coloring agent.   mirage   microcosm   parameter   pigment   Half-n-half Clue   7. pointers or indications.   indices   miasma   mirage   vent   Half-n-half Clue