Hesitate in Ireland (4)
I believe the answer is:
erin
'ireland' is the definition.
(poetic name for Ireland)
'hesitate in' is the wordplay.
'hesitate' becomes 'er' (expression used when hesitating).
'er'+'in'='ERIN'
(Other definitions for erin that I've seen before include "'Come back to ...' (emigrant song)" , "that faces Atlantic" , "Ireland (poet.)" , "Land" , "Let ... Remember (song)" .)