Possible Clues:

• It's clear to me I am in for extra work
• Hours worked in excess of usual
• Tie-break period
• Worker's extra pay
• Extra hours, on a paycheck
• Work in excess of fixed period
• Extra hours (at work)
• It takes more than an hour, perhaps, but you get paid for it
• Remove it as ordered, for extra pay
• Work beyond normal hours? Remove it