Henry’s attempts to attract attention about election for the people (3,6)
I believe the answer is:
hoi polloi
'the people' is the definition.
(Greek term for the common people)
'henry's attempts to attract attention about election' is the wordplay.
I cannot really see how this works, but
'election' could be 'poll' (I've seen this before) and 'poll' is located in the answer.
'henry' could be 'h' (symbol for the unit of electrical inductance) and 'h' is found within the answer.
This may be the basis of the clue (or it may be nonsense).
'for' acts as a link.
Can you help me to learn more?
(Other definitions for hoi polloi that I've seen before include "The unwashed masses!" , "vulgar rabble" , "Proletariat" , "(Often derogatory) term for the masses or common people" , "Riff-raff" .)