Family member knocked over that Parisian porcelain (6)
I believe the answer is:
bisque
'porcelain' is the definition.
(thesaurus)
'family member knocked over that parisian' is the wordplay.
'family member' becomes 'sib' (short for sibling).
'knocked over' shows that the letters should be reversed in order.
'that parisian' becomes 'que' ('that' in French).
'sib' in reverse letter order is 'bis'.
'bis'+'que'='BISQUE'
(Other definitions for bisque that I've seen before include "Creamy soup" , "golf handicap" , "Shellfish soup - kind of pottery" , "Rich shellfish soup - lobster is nice" , "Cream soup made with shellfish" .)