One present of a shirt for nurse to wear (8)
I believe the answer is:
attendee
'one present' is the definition.
(someone present or attending)
'a shirt for nurse to wear' is the wordplay.
'shirt' becomes 'tee shirt' (tee shirt is a kind of shirt).
'for nurse' becomes 'tend' (I can't justify this - if you can you should give a lot more credence to this answer).
'to wear' indicates putting letters inside (to wear something is to be covered up by it).
'tee' enclosing 'tend' is 'ttendee'.
'a'+'ttendee'='ATTENDEE'
'of' is the link.
Can you help me to learn more?
(Other definitions for attendee that I've seen before include "One going to, eg, conference" , "One at a meeting; teen date (anag.)" , "One present at a meeting" , "One present (at event)" , "One shows up" .)