Personal question from health authority (3)
I believe the answer is:
who
This clue could be a double definition.
'personal question' is the first definition.
'who' can be an answer for 'question' (I've seen this before). I'm not certain of the 'personal' bit.
'health authority' is the second definition.
'WHO' can be an answer for 'authority' (WHO is an example). I am unsure of the 'health' bit.
'from' is the link.
Can you help me to learn more?
(Other definitions for who that I've seen before include "Which people" , "UN health agency" , "The - - , rock legends" , "Unidentified" , "Alien doctor" .)