Chose the Spanish note about to spread (7)
I believe the answer is:
elected
'chose' is the definition.
(electing is a kind of choosing)
'spanish note about to spread' is the wordplay.
'spanish note' becomes 'cele' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'about' says the letters should be written in reverse.
'to spread' becomes 'ted' (I've seen this in another clue).
'cele' back-to-front is 'elec'.
'elec'+'ted'='ELECTED'
'the' is the link.
Can you help me to learn more?
(Other definitions for elected that I've seen before include "made a choice" , "Appointed" , "Chosen by ballot" , "Put in office" , "Selected by a vote" .)