Restive Hoskins is one getting nurses' attention (9)
I believe the answer is:
impatient
'restive' is the definition.
(I've seen this before)
'hoskins is one getting nurses' attention' is the wordplay.
'hoskins is' becomes 'I'm' (where the crossword setter is 'Hoskins').
'one getting' is a charade indicator (letters next to each other).
'nurses' attention' becomes 'patient' (I can't explain this - if you can you should give a lot more credence to this answer).
'im'+'patient'='IMPATIENT'
Can you help me to learn more?
(Other definitions for impatient that I've seen before include "Keen" , "Fidgety" , "showing anxiety" , "Job wasn't" , "Snappy" .)