Pioneering art represented a journey (13)
I believe the answer is:
peregrination
'a journey' is the definition.
(I've seen this before)
'pioneering art represented' is the wordplay.
'represented' indicates anagramming the letters.
'pioneering'+'art'='pioneeringart'
'pioneeringart' is an anagram of 'PEREGRINATION'.
(Other definitions for peregrination that I've seen before include "Long meandering journey" , "Travelling about" , "wandering" , "Globe-trotting" .)