Upright Piano is the answer
On each row, place a word beginning with 'H' to fit the clue given.
When completed, a musical instrument will be read down the third column of letters.
What is it?
_ _ _ _ CONCEAL _ _ _ _ CAUSE PAIN _ _ _ _ PERIOD OF TIME _ _ _ _ RELIGIOUS SONG
A name of a musical instrument is hidden in each of these phrases or sentences.