Medic wearing new ringlet, showing anxiety? (9)
I believe the answer is:
trembling
'showing anxiety?' is the definition.
(an anxious person might tremble)
'medic wearing new ringlet' is the wordplay.
'medic' becomes 'mb' (Bachelor of Medicine).
'wearing' indicates putting letters inside.
'new' is an anagram indicator.
'ringlet' anagrammed gives 'treling'.
'mb' placed into 'treling' is 'TREMBLING'.
(Other definitions for trembling that I've seen before include "Shaking" , "shaky" , "in a state of fear?" , "Shivering" .)