Largely represented as a head of state (7)
I believe the answer is:
regally
'as a head of state' is the definition.
I can't judge whether this definition defines the answer.
'largely represented' is the wordplay.
'represented' is an anagram indicator.
'largely' anagrammed gives 'REGALLY'.
Can you help me to learn more?
(Other definitions for regally that I've seen before include "Like a monarch" , "In royal style" , "In monarchical manner" , "as befits monarch" , "How head of state appears" .)