Name of a cereal, a magazine and a board game (4)
I believe the answer is:
life
(Other definitions for life that I've seen before include ""But an empty dream" (Longfellow) - "As tedious as a twice-told tale" (Shakespeare)" , "Actuarial estimate of our remaining years" , "Existence - biography" , "Baffin oiler (anag) - 7 film" , "The longest sentence" .)