Repeat question on love note (5)
I believe the answer is:
quote
'repeat' is the definition.
(quoting is a kind of repeating)
'question on love note' is the wordplay.
'question' becomes 'qu'.
'on' means one lot of letters go next to another.
'love' becomes 'o' (In tennis, 'love' means 'zero').
'note' becomes 'te' (**).
'qu'+'o'+'te'='QUOTE'
(Other definitions for quote that I've seen before include "quantify the damage" , "Cite - likely cost of work to be done" , "Give estimate of (price)" , "That's what was said" .)