Hearty companion has beer with Henry (4)
I believe the answer is:
hale
'hearty companion' is the definition.
(I've seen this in another clue)
'beer with henry' is the wordplay.
'beer' becomes 'ale' (type of beer).
'with' means one lot of letters go next to another.
'henry' becomes 'H' (symbol for the unit of electrical inductance).
'ale' put after 'h' is 'HALE'.
'has' acts as a link.
(Other definitions for hale that I've seen before include "Strong and healthy" , "Sound of body" , "Healthy and robust" , "Well" , "Healthy and hearty" .)