Wipe face on tablecloth, kids! (6)
I believe the answer is:
tissue
'wipe face' is the definition.
The answer and definition can be both body parts as well as being singular nouns.
Maybe there's an association between them I don't understand?
'on tablecloth kids' is the wordplay.
'on' means one lot of letters go next to another.
'tablecloth' becomes 't' (this might be a standard abbreviation which I don't know about).
'kids' becomes 'issue' (legal term for a person's children).
't'+'issue' is 'TISSUE'.
Can you help me to learn more?
(Other definitions for tissue that I've seen before include "Disposable piece of absorbent paper" , "Disposable hankie" , "Fine soft paper" , "Skin or thin paper" , "Thin paper; concoction (of lies)" .)