1. obscure   ABSTRUSE   CARPING   ANALOGOUS   BLIGHTED   Hint Half-n-half Clue   2. clear and coherent   ABSTEMIOUS   ARTICULATE   ABSTRUSE   ACCESSIBLE   Half-n-half Clue   3. ascetic   BLIGHTED   CIRCUITOUS   AMICABLE   AUSTERE   Half-n-half Clue   4. artistic   AESTHETIC   CENSORIOUS   CIRCUITOUS   ALTRUISTIC   Half-n-half Clue   5. not encouraging   CONTENTIOUS   ASTUTE   ABSTEMIOUS   BLEAK   Half-n-half Clue   6. hard-working   ASSIDUOUS   AUSTERE   ABSTEMIOUS   AMORPHOUS   Half-n-half Clue   7. friendly   ARID   COMPREHENSIVE   ABSTRUSE   AFFABLE   Half-n-half Clue