Verb coined by Lewis Carroll (7)
I believe the answer is:
galumph
'verb coined by lewis carroll' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for galumph that I've seen before include "move inelegantly" , "proceed awkwardly" , "Leap about clumsily" , "Bound so excitedly" , "Stride exultantly" .)