Rely on family for supply of claret? (5,4)
I believe the answer is:
blood bank
'supply of claret?' is the definition.
'blood bank' can be an answer for 'supply' (I have seen 'vital supply' mean 'blood bank' so perhaps 'supply' could also mean 'blood bank'). I'm not certain of the 'of claret?' bit.
'rely on family' is the wordplay.
'rely' becomes 'bank'.
'on' means one lot of letters go next to another.
'family' becomes 'blood' (blood can mean one's family).
'bank' put after 'blood' is 'BLOOD BANK'.
'for' acts as a link.
Can you help me to learn more?
(Other definitions for blood bank that I've seen before include "Store of vital fluid" , "vital supply" , "Reservoir for transfusions" .)