Celebrity had no soul, he rehashed Sam & Dave in the end (9,4)
I believe the answer is:
household name
'celebrity' is the definition.
(I've seen this before)
'had no soul he rehashed sam dave in the end' is the wordplay.
'rehashed' is an anagram indicator (I've seen 'rehash' mean this).
'in the end' says to take the final letters.
The final letters of 'sam dave' are 'me'.
'had'+'no'+'soul'+'he'='hadnosoulhe'
'hadnosoulhe' anagrammed gives 'householdna'.
'householdna'+'me'='HOUSEHOLD NAME'
(Other definitions for household name that I've seen before include "One everyone's heard of" , "One famous" , "Celebrity" , "Famous (living) person" , "Famous person or thing" .)