Pop star having celebration with heavenly food brought round (7)
I believe the answer is:
madonna
'pop star' is the definition.
(I've seen this before)
'celebration with heavenly food brought round' is the wordplay.
'celebration with' becomes 'do' (I can't justify this - if you can you should believe this answer much more).
'heavenly food' becomes 'manna' (as in manna from heaven).
'brought round' indicates putting letters inside.
'do' going into 'manna' is 'MADONNA'.
'having' is the link.
Can you help me to learn more?
(Other definitions for madonna that I've seen before include "American pop singer" , "Virgin Mary - or American showbiz queen" , "pop star" , "Representation of the Virgin Mary" , "Religious work" .)