Dance with retired doctor showing lack of coordination (7)
I believe the answer is:
discord
'lack of coordination' is the definition.
'discord' can be an answer for 'lack' (I have seen 'Lack of harmony' mean 'discord' so perhaps 'lack' could also mean 'discord'). I am unsure of the 'of coordination' bit.
'dance with retired doctor' is the wordplay.
'dance' becomes 'disco' (disco can mean a dance event).
'with' is a charade indicator (letters next to each other).
'retired' is a reversal indicator.
'doctor' becomes 'dr' (abbreviation).
'dr' back-to-front is 'rd'.
'disco'+'rd'='DISCORD'
'showing' is the link.
Can you help me to learn more?
(Other definitions for discord that I've seen before include "Friction" , "contention" , "cacophony" , "Dissension" , "Lack of agreement" .)