Pause at these, I suspect (8)
I believe the answer is:
hesitate
'pause' is the definition.
('hesitate' can be a synonym of 'pause')
'at these i suspect' is the wordplay.
'suspect' indicates anagramming the letters.
'at'+'these'+'i'='atthesei'
'atthesei' is an anagram of 'HESITATE'.
(Other definitions for hesitate that I've seen before include "Be reluctant" , "Show indecision" , "Be in two minds" , "Falter, delay" , "Pause, think twice" .)