Inflated wheel, oddly, to go in wheel-less conveyance (7)
I believe the answer is:
swelled
'inflated' is the definition.
(thesaurus)
'wheel oddly to go in wheel-less conveyance' is the wordplay.
'oddly' means one should take alternating letters.
'to go in' indicates putting letters inside.
'wheel-less conveyance' becomes 'sled'.
The alternating letters of 'wheel' are 'wel'.
'wel' going into 'sled' is 'SWELLED'.
(Other definitions for swelled that I've seen before include "Puffed up" , "Inflated" , "Expanded" .)