Hesitation; break (5)
I believe the answer is:
pause
I believe this clue is a double definition.
'hesitation' is the first definition.
(I've seen this in another clue)
'break' is the second definition.
(I know that break can be written as pause)
(Other definitions for pause that I've seen before include "Short delay" , "Stop for a moment" , "Halt briefly" , "Stoppage" , "Temporary cessation" .)