1. person with morbid tendency to drink alcohol.   Hint First letter clue   2. gang or troop of nomads.   First letter clue   3. deserter of party or principles.   First letter clue   4. person who studies fishes.   First letter clue   5. one who intrudes into others' affairs (for profit).   First letter clue   6. lewd and sexually aggressive male.   First letter clue   7. one who turns one's thoughts inwards.   First letter clue