Travelling miles to find parking is easy (6)
I believe the answer is:
simple
'is easy' is the definition.
(similar in meaning)
'travelling miles to find parking' is the wordplay.
'travelling' indicates anagramming the letters.
'to find' says to put letters next to each other.
'parking' becomes 'p' (abbreviation on road signs).
'miles'+'p'='milesp'
'milesp' with letters rearranged gives 'SIMPLE'.
(Other definitions for simple that I've seen before include "Easy; herb" , "Not complex, complicated or involved" , "Elementary" , "Penniless pie seeker" , "A piece of cake" .)