Touch with an oral greeting (4)
I believe the answer is:
kiss
This clue could be a double definition.
'touch' is the first definition.
(I know that kiss is a type of touch)
'an oral greeting' is the second definition.
'kiss' can be an answer for 'greeting' (I have seen 'Amorous greeting ' mean 'kiss' so perhaps 'greeting' could also mean 'kiss'). I'm not sure about the 'an oral' bit.
'with' is the link.
Can you help me to learn more?
(Other definitions for kiss that I've seen before include "Eg, smacker, peck" , "drop of wax" , "Smooch" , "Smack; peck" , "(Of snooker ball) touch gently; X represents it" .)