In a way Marconi was of Latin descent (7)
I believe the answer is:
romanic
'was of latin descent' is the definition.
I can't judge whether this defines the answer.
'in a way marconi' is the wordplay.
'in a way' is an anagram indicator.
'marconi' is an anagram of 'ROMANIC'.
Can you help me to learn more?
(Other definitions for romanic that I've seen before include "Italian etc." , "type of language" , "Like Spanish" , "Ancient European" , "Like Latin" .)