Travelling from place to place (11)
(Other definitions for peripatetic that I've seen before include "Working in several places" , "Going from place to place" , "Itinerant" , "Travelling around" , "Wandering around" .)
'travelling from place to place' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for itinerant that I've seen before include "Moving from place to place" , "Nomadic" , "Travelling around" , "Old labourer/traveller who travelled from place to place" , "Wanderer" .)