Business bigwigs here? A man gets excited (8)
I believe the answer is:
magnates
'business bigwigs here?' is the definition.
Although both the answer and 'here?' are nouns, they are not in the same form of the noun.
'a man gets excited' is the wordplay.
'excited' indicates an anagram.
'a'+'man'+'gets'='amangets'
'amangets' is an anagram of 'MAGNATES'.
Can you help me to learn more?
(Other definitions for magnates that I've seen before include "Business tycoons or influential people" , "Very wealthy or powerful businessmen" .)