Perhaps "Ashes Live" is entertaining for all the family (7)
I believe the answer is:
residue
'perhaps ashes' is the definition.
(I know that ash is a type of residue)
'live is entertaining for all the family' is the wordplay.
I cannot really see how this works, but
'for all' could be 'u' (Universal film certificate - suitable for all) and 'u' is found in the answer.
'live' could be 'reside' (residing is a kind of living) and 'reside' is present in the remaining letters.
No letters remain.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for residue that I've seen before include "What is left, maybe dregs" , "Lees, dregs" , "What is left over, remainder (7)" , "Part remaining" , "Something remaining" .)