1. hasten the progress of   EXPEDITE   DISSENT   EMULATE   DISTEND   Hint Half-n-half Clue   2. scatter   EQUIVOCATE   DISPERSE   EXPEDITE   EXPLOIT   Half-n-half Clue   3. cause   ENGENDER   ELUCIDATE   ENHANCE   EMULATE   Half-n-half Clue   4. remove errors   ELICIT   DISPERSE   EXPLOIT   EMEND   Half-n-half Clue   5. disagree   EXTRICATE   ENHANCE   DISSENT   EMEND   Half-n-half Clue   6. augment   EFFACE   EXTRICATE   ENHANCE   DISPARAGE   Half-n-half Clue   7. imitate   DISSEMINATE   EMULATE   DISPERSE   ELICIT   Half-n-half Clue