Train to have wheels in middle (7)
I believe the answer is:
cortege
'train' is the definition.
(both can mean a procession following behind)
'have wheels in middle' is the wordplay.
'have' becomes 'get' (synonyms).
'wheels' says the letters should be written backwards (to wheel can mean to turn around).
'in' is an insertion indicator.
'middle' becomes 'core' (core can mean the centre of something).
'get' reversed gives 'teg'.
'teg' going within 'core' is 'CORTEGE'.
'to' acts as a link.
(Other definitions for cortege that I've seen before include "train" , "Processing figures" , "Entourage, retinue" , "Solemn funeral procession" .)