Group with sad record (3,4)
I believe the answer is:
set down
'record' is the definition.
(I've seen this before)
'group with sad' is the wordplay.
'group' becomes 'set' (both can mean a collection).
'with' means one lot of letters go next to another.
'sad' becomes 'down' (down can mean sad or unhappy).
'set'+'down'='SET-DOWN'
(Other definitions for set down that I've seen before include "judge" , "performance in Wimbledon match?" , "is allowed to alight" , "Put into writing" , "Record in writing" .)