Journey permitted making a few notes (7)
I believe the answer is:
triplet
'a few notes' is the definition.
(set of three musical notes)
'journey permitted' is the wordplay.
'journey' becomes 'trip' (trip is a kind of journey).
'permitted' becomes 'let' (I've seen this before).
'trip'+'let'='TRIPLET'
'making' is the link.
(Other definitions for triplet that I've seen before include "One of a group of three" , "Member of large family" , "One of three at the same birth" , "One of three children" , "One of several arriving together" .)