1. person easily tricked   DUPE   FERVOR   EULOGY   EMPATHY   Hint Half-n-half Clue   2. sharing of feelings   EMPATHY   ENERVATION   DISINCLINATION   DETERRENT   Half-n-half Clue   3. weakening   DISPARITY   FANATICISM   ENERVATION   DETERRENT   Half-n-half Clue   4. principle or beliefs   DURATION   ENIGMA   DOCTRINE   ENMITY   Half-n-half Clue   5. hatred   DUPLICITY   EMPATHY   ENMITY   ELABORATION   Half-n-half Clue   6. puzzle   ENIGMA   DILIGENCE   DISSONANCE   ENNUI   Half-n-half Clue   7. sorrowful song   DISINCLINATION   ENERVATION   DILIGENCE   ELEGY   Half-n-half Clue