Mouth part
'mouth part' is the definition.
(I know that lip is part of mouth)
This is all the clue.
(Other definitions for lip that I've seen before include "Oral impudence?" , "Edge; impudent talk" , "Edge of mouth" , "Rim; impertinence" , "Part of mouth or cheek" .)
'mouth part' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for roof that I've seen before include "Housetop" , "Canopy" , "Cover for house" , "House's top" , "Mansard is an example of one" .)
'mouth part' is the definition.
(I know that lips is part of mouth)
This is the entire clue.
(Other definitions for lips that I've seen before include "Brims, rims" , "Take, O take those - away (Measure for Measure)" , "Fleshy folds of tissue" , "Fleshy folds on the face" , "What form the opening to the mouth" .)