Possible Clues:

• Spring over to this
• Time to burn?
• '. . . . . . time an' the livin' is easy' (song)
• ` `Now is the winter of our discontent / Made glorious ... by this sum of York' ' (Richard III)
• Calculator of number in old part of Iraq
• 'Oh, the ...time is comin', and the leaves are sweetly bloomin'' (song)
• One might be quite hot at working with figures, perhaps
• Totter before the Fall?
• Time for the adder
• One is hot as a mathematician, perhaps