Gush over really empty medical rooms (7)
I believe the answer is:
surgery
'medical rooms' is the definition.
The answer and definition can be both man-made objects as well as being singular nouns.
Perhaps you can see a link between them that I don't see?
'gush over really empty' is the wordplay.
'gush' becomes 'surge' (synonyms).
'over' says to put letters next to each other (in a down clue, some letters go over others).
'empty' means to remove the middle letters.
'really' with its centre removed is 'ry'.
'surge'+'ry'='SURGERY'
Can you help me to learn more?
(Other definitions for surgery that I've seen before include "Doctor's (or MP's) place of business" , "Doctor's consulting room" , "Doctors' practice" , "Medical intervention" , "Health Service" .)