Perfect bits of lovemaking requiring no tips (5)
I believe the answer is:
exact
'perfect' is the definition.
(associated in meaning)
I don't understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for exact that I've seen before include "Meticulous" , "Completely accurate" , "Precise - demand" , "Faithful" , "Call" .)