Remarks on stone heap moved around mine (7)
I believe the answer is:
epitaph
'remarks on stone' is the definition.
(remarks on someone's headstone)
'heap moved around mine' is the wordplay.
'moved' is an anagram indicator.
'around' means one lot of letters goes inside another.
'mine' becomes 'pit' (down the pit).
'heap' is an anagram of 'eaph'.
'eaph' enclosing 'pit' is 'EPITAPH'.
(Other definitions for epitaph that I've seen before include "Memorial inscription" , "Words written on tombstone" , "Dead' record" , "Words describing a dead person (7)" , "Words inscribed on a tomb" .)