Oddly bluesy cover of Satchmo giving good wish (5,3)
I believe the answer is:
bless you
'good wish' is the definition.
I don't know anything about this answer so I cannot judge whether it can be defined by this definition.
'oddly bluesy cover of satchmo' is the wordplay.
'oddly' indicates an anagram.
'cover of' means to remove the middle letters (only the letters which cover the word).
'satchmo' with its middle removed is 'so'.
'bluesy'+'so'='bluesyso'
'bluesyso' with letters rearranged gives 'BLESS YOU'.
'giving' is the link.
Can you help me to learn more?
(Other definitions for bless you that I've seen before include "as bishop may do?" , "remark following ejection?" , "'It's said to a sneezer (5,3)'" , "Wish to a sneezer" , "It's said after a sneeze" .)