Wandering after word of hesitation, hurried by square (6)
I believe the answer is:
errant
'wandering' is the definition.
(I've seen this in another clue)
'word of hesitation hurried by square' is the wordplay.
'word of hesitation' becomes 'er'.
'hurried' becomes 'ran' (running is a kind of hurrying).
'by' says to put letters next to each other.
'square' becomes 't' (a T-Square is a technical drawing instrument).
'er'+'ran'+'t'='ERRANT'
'after' is the link.
(Other definitions for errant that I've seen before include "Straying from the right course" , "Behaving badly" , "Kind of knight who once travelled for adventure" , "Nomadic" , "Off the mark, wandering" .)