Is same failing hard for saviour? (7)
I believe the answer is:
messiah
'for saviour?' is the definition.
(messiah is a kind of saviour)
'is same failing hard' is the wordplay.
'failing' is an anagram indicator.
'hard' becomes 'h' (abbreviation used in pencil classifications).
'is'+'same'='issame'
'issame' anagrammed gives 'messia'.
'messia'+'h'='MESSIAH'
(Other definitions for messiah that I've seen before include "His coming was prophesied in the Old Testament" , "Hallelujah chorus work" , "Redeemer" , "The Promised One" , "Handel's composition sung at Christmas" .)