Holding note with Sinatra? (7)
I believe the answer is:
tenancy
'holding' is the definition.
(I've seen this before)
'note with sinatra?' is the wordplay.
'note' becomes 'te' (musical note as in do re mi fa so la ti).
'with' says to put letters next to each other.
'sinatra?' becomes 'nancy' (I am not sure about this - if you are sure you should believe this answer much more).
'te'+'nancy'='TENANCY'
Can you help me to learn more?
(Other definitions for tenancy that I've seen before include "Period of holding land, office" , "Letting arrangement" , "Tenure" , "Rental agreement" , "Let" .)