Mug from New York hotel is breaking (5)
I believe the answer is:
ninny
'mug' is the definition.
The definition and answer can be both people as well as being singular nouns.
Perhaps they are linked in a way I don't understand?
'new york hotel is breaking' is the wordplay.
'new york' becomes 'ny'.
'hotel' becomes 'inn' (inn is a kind of hotel).
'is breaking' means one lot of letters goes inside another.
'ny' going around 'inn' is 'NINNY'.
'from' acts as a link.
Can you help me to learn more?
(Other definitions for ninny that I've seen before include "gravely so miscalled by mechanicals" , "not a wise man" , "Fool" , "Stupid foolish person" , "Simpleton" .)