冴える[saeru] to be clear (of a sight, sound, colour, etc.)
冴え輝く[saekagayaku] to shine clearly
冴え行く[saeyuku] to clear gradually
冴え冴えした[saezaeshita] cheerful (look)
冴え冴えとした[saezaetoshita] cheerful (look)

冴え渡る[saewataru] to get cold
冴返る[saekaeru] to be very clear
頭の冴え[atamanosae] bright intelligence
腕の冴え[udenosae] dexterity

雲鬢花顔[unbinkagan] beautiful woman (metaphorical)
横顔[yokogao] face in profile
温顔[ongan] kindly face
なに食わぬ顔[nanikuwanukao] innocent look
我物顔[wagamonogao] looking or acting as if one owned the place

汗顔[kangan] ashamed
顔から火が出る[kaokarahigaderu] to be extremely embarrassed
顔を顰める[kaowoshikameru] to grimace
顔を潰す[kaowotsubusu] to make somebody lose face