A superfluous or second-best person, specially (in a dynastic context) in the phrase "An heir and a spare".
The right of bowling again at a full set of pins, after having knocked all the pins down in less than three bowls. If all the pins are knocked down in one bowl it is a double spare; in two bowls, a single spare.
The act of knocking down all remaining pins in second ball of a frame; this entitles the pins knocked down on the next ball to be added to the score for that frame.
A free period; a block of school during which one does not have a class.
Scant; not abundant or plentiful. Example: a spare diet
Sparing; frugal; parsimonious; not spending much money.
Being more than what is necessary, or what must be used or reserved; not wanted, or not used; superfluous. Example: I have no spare time.
Held in reserve, to be used in an emergency. Example: a spare anchor; a spare bed or room
Lean; lacking flesh; meager; thin; gaunt.
Very angry; frustrated or distraught. Example: The poor girl is going spare, stuck in the house all day with the kids like that.
Slow.
All clues having "SPARE"
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You can find a list of possible crossword clues for SPARE below.