Temporary passion to die, not new, out-of-date (5)
I believe the answer is:
faded
'out-of-date' is the definition.
(faded can mean out-of-date)
'temporary passion to die not new' is the wordplay.
'temporary passion' becomes 'fad' (a fad is a brief craze or passion).
'to die' becomes 'end' (I've seen this in other clues).
'not' suggests deleting specific letters.
'new' becomes 'n' (abbreviation as in New Testament NT).
'end' with 'n' taken out is 'ed'.
'fad'+'ed'='FADED'
(Other definitions for faded that I've seen before include "Lost freshness or colour" , "Lost youth" , "went off line" , "Gradually disappeared" , "Washed-out, dimmed" .)