Old and new afflicted surrounding hospital towards the coast (7)
I believe the answer is:
onshore
'towards the coast' is the definition.
(I've seen this before)
'old and new afflicted surrounding hospital' is the wordplay.
'old' becomes 'o' (common abbreviation eg in OE for Old English).
'and' becomes 'n' (common abbreviation for 'and').
'new afflicted surrounding hospital' becomes 'shore' (I am not sure about this - if you are sure you should believe this answer much more).
'o'+'n'+'shore'='ONSHORE'
Can you help me to learn more?
(Other definitions for onshore that I've seen before include "towards the coast" , "(Of wind) blowing from sea" , "Towards land (from sea)" , "Ron's hoe (anag.)" , "beach?" .)