Run pub to entertain loud, drunken man (7)
I believe the answer is:
rudolph
'man' is the definition.
'run pub to entertain loud drunken' is the wordplay.
'run' becomes 'r' (cricket abbreviation).
'pub' becomes 'ph' (abbreviation).
'to entertain' indicates putting letters inside.
'drunken' is an anagram indicator.
'r'+'ph'='rph'
'loud' anagrammed gives 'udol'.
'rph' placed around 'udol' is 'RUDOLPH'.
(Other definitions for rudolph that I've seen before include "First reindeer" , "-- Valentino, US actor" , "Red-nosed leader" , "one of Santa's team?" , "Crown prince who died at Mayerling" .)