1. killjoy   person who is excessively selfish.   depressing person or spoilsport.   rogue or unprincipled person.   person who is unable to sleep.   Hint Half-n-half Clue   2. firebrand   one interested in other persons and external world.   a dwarf or a midget, underground spirit.   person who is idiotic or weak in mind.   person who causes trouble and starts quarrels.   Half-n-half Clue   3. devotee   irritating person; cattle-biting fly.   one who devotes himself to religion or cause.   person who believes that pleasure is the main aim of life.   ancestors.   Half-n-half Clue   4. diva   shrewish, abusive woman or termagant.   refugee or exile.   prima donna or chief singer in an opera.   connoisseur; dealer of animals.   Half-n-half Clue   5. kleptomaniac   gang or troop of nomads.   one who intrudes into others' affairs (for profit).   person with morbid tendency to steal.   shrewish, abusive woman or termagant.   Half-n-half Clue   6. dupe   person who is easily deceived.   one who turns one's thoughts inwards.   rogue or unprincipled person.   person who studies fishes.   Half-n-half Clue   7. entomologist   person who studies fishes.   rogue or unprincipled person.   person who studies insects.   person who studies the nature of knowledge.   Half-n-half Clue