Remark praising short stockings on Tolstoy heroine (7)
I believe the answer is:
hosanna
'remark praising' is the definition.
(biblical exclamation)
'short stockings on tolstoy heroine' is the wordplay.
'short' means to remove the last letter.
'stockings' becomes 'hose' (I've seen this before).
'on' says to put letters next to each other.
'tolstoy heroine' becomes 'Anna' (Anna Karenina in the Tolstoy book of the same name).
'hose' with its final letter taken away is 'hos'.
'hos'+'anna'='HOSANNA'
(Other definitions for hosanna that I've seen before include "Shout of praise" , "Adoring cry" , "Shout of acclamation" , "Cry of praise or joy" , "exclamation of joy" .)