Gasps to see monk dine at hotel with son (7)
I believe the answer is:
breaths
'gasps to see monk' is the definition.
I can't tell whether this defines the answer.
'dine at hotel with son' is the wordplay.
'dine' becomes 'bre' (I can't explain this - if you can you should give a lot more credence to this answer).
'hotel' becomes 'h' (phonetic alphabet).
'with' is a charade indicator (letters next to each other).
'son' becomes 's' (genealogical abbreviation for son).
'bre'+'at'+'h'+'s'='BREATHS'
Can you help me to learn more?
(Another definition for breaths that I've seen is " Inhalations and exhalations".)