A couple of notes showing love (5)
I believe the answer is:
adore
'love' is the definition.
(adoring is a kind of loving)
'a couple of notes' is the wordplay.
'a couple of notes' means two substitutions for 'note'.
'note' becomes 'a' (musical note).
'note' becomes 'dore' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'a'+'dore'='ADORE'
'showing' is the link.
Can you help me to learn more?
(Other definitions for adore that I've seen before include "Cherish" , "Love, revere intensely" , "Love, worship" , "Honour" , "Worship and glorify" .)