Walk around large venue (5)
'venue' is the definition.
(I've seen this before)
'walk around large' is the wordplay.
'walk' becomes 'pace' (pacing is a kind of walking).
'around' indicates putting letters inside.
'large' becomes 'l'.
'pace' placed around 'l' is 'PLACE'.
(Other definitions for place that I've seen before include "Spot", "Locus", "Locate", "Endearingly pretty", "Location; put".)