Crown of Henry VIII (6)
I believe the answer is:
'crown' is the definition.
'henry viii' is the wordplay.
'henry' becomes 'H' (symbol for the unit of electrical inductance).
'viii' becomes 'eight' (synonyms).
'of' is the link.
(Other definitions for height that I've seen before include "Dimension from top to bottom" , "part of a patient's statistics?" , "Crowning moment" , "Vertical extent" , "summit" .)