Move awkwardly as lass gaining speed outside university (7)
I believe the answer is:
galumph
'move awkwardly' is the definition.
'lass gaining speed outside university' is the wordplay.
'lass' becomes 'gal' (I've seen this before**).
'gaining' is a charade indicator (letters next to each other).
'speed' becomes 'mph' (miles per hour).
'outside' indicates putting letters inside.
'university' becomes 'u'.
'gal'+'mph'='galmph'
'galmph' going around 'u' is 'GALUMPH'.
'as' acts as a link.
(Other definitions for galumph that I've seen before include "Stride exultantly" , "move inelegantly" , "proceed awkwardly" , "Leap about clumsily" , "Bound so excitedly" .)