You try terms out in strange journey (7,4)
I believe the answer is:
mystery tour
'strange journey' is the definition.
The definition suggests a singular noun which matches the answer.
'you try terms out' is the wordplay.
'out' is an anagram indicator (out can mean wrong or inaccurate).
'you'+'try'+'terms'='youtryterms'
'youtryterms' is an anagram of 'MYSTERY TOUR'.
'in' acts as a link.
Can you help me to learn more?
(Other definitions for mystery tour that I've seen before include "A journey to the unknown" , "Trip to places unknown" , "Of which the destinations are secret" , "Suspenseful excursion" , "The Beatles had a magical one" .)