掛け矢 is read as かけや (kakeya) and means mallet.
かけや
kakeya
かけじく
hanging scroll
かけりつ
ratio of wholesale price to retail price
や
arrow
ゆみや
bow and arrow
いっし
a retort
おおや
long arrow
にのや
second arrow
よつや
matched set of four arrows for target shooting
とおしや
long-range archery
かずや
mass-produced arrows
いしびや
ancient type of cannon
まとや
arrow and target