Clean (4)
'clean' is the definition.
(washing is a kind of cleaning)
This is all the clue.
(Other definitions for wash that I've seen before include "Clean oneself" , "wake" , "Scrub" , "Clean with liquid" , "shower" .)
'clean' is the definition.
(wipe can mean to clean something down)
This is all the clue.
(Other definitions for wipe that I've seen before include "Rub lightly to remove dust, etc" , "use cloth" , "Push cloth over" , "Cancel (tape)" , "Clean with a damp cloth" .)
'clean' is the definition.
(similar in meaning)
This is the entire clue.
(Other definitions for spick and span that I've seen before include "Very neat and clean" , "Spotless" , "Absolutely neat" , "Spruced up" , "Neat and tidy" .)