Possible Clues:

• The perfect seat for a marine professor?
• Arch Irma perched on comfortable seat
• Sort of detective maybe having weapon to take charge of
• Home spectator may have this knowing expression when Middlesex's opener comes in
• Seat with support on both sides
• Comfortable seat for such a critic?
• Type of critic with no standing?
• Perhaps rocker broadcast after March, strangely
• Equip professor’s position, providing comfortable seat
• Home comfort offered by a marine professor's position