Hero at home entertaining company (4)
I believe the answer is:
icon
'hero' is the definition.
'home entertaining company' is the wordplay.
'home' becomes 'in' ('he's home' can mean 'he's in').
'entertaining' is an insertion indicator.
'company' becomes 'co' (abbreviation).
'in' placed around 'co' is 'ICON'.
'at' acts as a link.
(Other definitions for icon that I've seen before include "Image or statue, or symbol on computer screen" , "Religious work" , "Idol" , "Saint's image" , "Venerated picture" .)