1. thick-skinned animal (or person).   Hint First letter clue   2. animal with four feet.   First letter clue   3. marsh or soft and wet land.   First letter clue   4. pattern with balance or harmony.   First letter clue   5. violent disturbance or agitation.   First letter clue   6. primary type used as model.   First letter clue   7. lowest point in wave; shallow receptacle.   First letter clue