Help me find out this word.<br/><br/>Clue: <br/><br/>The understanding of a subject of study (9)<br/><br/>C??????r?<br/><br/><br/><br/> <br/><br/>Suggested what he had in his hands when he exited (4, 3, 4)<br/><br/><br/><br/>c????????t?<br/>