Knight turned up and sent secretary head-over-heels in City of Love (5)
I believe the answer is:
paris
'city of love' is the definition.
'Paris' can be an answer for 'city' (Paris is an example). I'm not certain of the 'of love' bit.
'knight turned up and sent secretary head-over-heels' is the wordplay.
I cannot quite see how this works, but
'up' could be 'is' (I've seen this in other clues) and 'is' is found in the answer.
'secretary' could be 'pa' (abbreviation for personal assistant) and 'pa' is located in the answer.
A single letter 'r' remains which might be clued in a way I don't understand.
This explanation may well be incorrect...
'in' is the link.
Can you help me to learn more?
(Other definitions for paris that I've seen before include "City on the Seine" , "Trojan prince who abducted Helen" , "Continental capital" , "where plaster comes from?" , "Capital of France" .)