Picture that is appended to second volume (5)
I believe the answer is:
movie
'picture' is the definition.
(synonyms)
'that is appended to second volume' is the wordplay.
'that is' becomes 'ie' (short for Latin 'id est', 'that is').
'appended to' means one lot of letters go next to another.
'second' becomes 'mo' (both are short periods of time).
'volume' becomes 'v' (abbreviation for volume in book titles).
'mo'+'v'='mov'
'ie' put after 'mov' is 'MOVIE'.
(Other definitions for movie that I've seen before include "provide entertainment" , "picture" , "Cinema film (mainly US)" , "Gladiator for one" , "Flick" .)