One being broadcast in factory, English fat cat? (11)
I believe the answer is:
millionaire
'fat cat?' is the definition.
(thesaurus)
'one being broadcast in factory english' is the wordplay.
'one' becomes 'i' (Roman numeral).
'being broadcast' becomes 'onair' (I've seen this before**).
'in' means one lot of letters goes inside another.
'factory' becomes 'mill' ('mill' can be a synonym of 'factory').
'english' becomes 'e' (abbreviation).
'i'+'onair'='ionair'
'mill'+'e'='mille'
'ionair' put within 'mille' is 'MILLIONAIRE'.
(Other definitions for millionaire that I've seen before include "See 14" , "Very wealthy person" , "Rich fellow" , "Airline limo (anag) - rich person" .)