1. grieve   LINGER   INSTIGATE   LAMPOON   LAMENT   Hint Half-n-half Clue   2. obstruct   IMPEDE   HAMPER   IMPAIR   INTIMIDATE   Half-n-half Clue   3. put into effect   IMPUTE   GAINSAY   IMPLEMENT   FATHOM   Half-n-half Clue   4. stir up   GAINSAY   LINGER   LAMENT   INCITE   Half-n-half Clue   5. become weak or speak hesitantly   IMPUTE   INTERVENE   FALTER   GAINSAY   Half-n-half Clue   6. persuade   INCITE   LINGER   INTIMIDATE   INDUCE   Half-n-half Clue   7. attribute to someone   INDICT   IMPUTE   GAINSAY   IMPAIR   Half-n-half Clue