Even LSD is OK as a way of generating affection (4,3,6)
I believe the answer is:
love and kisses
'generating affection' is the definition.
I don't know anything about this answer so I can't judge whether it can be defined by this definition.
'even lsd is ok as a way' is the wordplay.
'a way' is an anagram indicator (another way of arranging the letters).
'even'+'lsd'+'is'+'ok'+'as'='evenlsdisokas'
'evenlsdisokas' with letters rearranged gives 'LOVE AND KISSES'.
'of' acts as a link.
Can you help me to learn more?
(Another definition for love and kisses that I've seen is " Affectionate ending to a letter".)