Time to meet sorceress with hesitation -- one may be nervous (8)
I believe the answer is:
twitcher
'one may be nervous' is the definition.
(someone may twitch due to nervousness)
'time to meet sorceress with hesitation' is the wordplay.
'time' becomes 't' (abbreviation).
'to meet' means one lot of letters go next to another.
'sorceress' becomes 'witch' (synonyms).
'with' means one lot of letters go next to another.
'hesitation' becomes 'er' (sound used when hesitating).
't'+'witch'+'er'='TWITCHER'
(Other definitions for twitcher that I've seen before include "Spasmodic" , "One not still" , "Rare bird spotter" , "Bird-watcher (colloq)" , "Nervous person" .)