Twelve (4)
'twelve' is the definition.
(twelve noon)
This is the entire clue.
(Other definitions for noon that I've seen before include "A moment of time" , "Twelve o'clock in the day" , "when PM starts" , "Twelve o'clock, midday" , "High time of day?" .)
'twelve' is the definition.
(synonyms)
This is all the clue.
(Other definitions for dozen that I've seen before include "Twelve (or thirteen for a baker?)" , "One less than 13" , "See 4" , "A number of disciples" , "XII" .)
(Other definitions for gross that I've seen before include "exclamation of disgust" , "Repulsively large" , "square?" , "Foul" , "Very fat - indecent" .)