This is a container clue - one word or set of letters goes inside another word. Look for an indicator that suggests hiding, inserting, or putting something inside something else.
The indicator 'to hide' tells you to put one word inside another. You need to find a word meaning 'damage' and insert it into a word meaning 'quick'. The damage word goes inside the quick word.
Answer: PHARMACY | Take HARM (damage) and insert it into PACY (quick) using the container indicator 'to hide' - P-HARM-ACY = PHARMACY