Quite a few expressions of hesitation getting in the way of sense (8)
I believe the answer is:
numerous
'quite a few' is the definition.
(of a considerable number)
'expressions of hesitation getting in the way of sense' is the wordplay.
I cannot quite understand how this works, but
'of' could be 'o' and 'o' is present in the answer.
'hesitation' could be 'um' (sound made when hesitating) and 'um' is present in the answer.
'way' could be 's' (Compass direction - South) and 's' is located in the answer.
This may be the basis of the clue (or it may be nonsense).
(Other definitions for numerous that I've seen before include "Many, multifarious" , "Consisting of many items" , "Plentiful" , "Umpteen" , "Goodly but indefinite number" .)