1. accuse   INCITE   INDICT   FALTER   HAMPER   Hint Half-n-half Clue   2. obstruct   LANGUISH   GRATIFY   HAMPER   IMPLEMENT   Half-n-half Clue   3. put into effect   IMPLEMENT   LAMPOON   IMPEDE   INVERT   Half-n-half Clue   4. become weak or speak hesitantly   INDUCE   FALTER   HEED   INTIMIDATE   Half-n-half Clue   5. stay for long time   GAINSAY   LINGER   IMPLEMENT   LAMPOON   Half-n-half Clue   6. reverse   LINGER   INTIMIDATE   INVERT   IMPAIR   Half-n-half Clue   7. come between   INCITE   INTERVENE   IMPEDE   IMPLEMENT   Half-n-half Clue