Everywhere, from penthouse to basement? (4,3,3)
I believe the answer is:
high and low
'everywhere' is the definition.
(I've seen this before)
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for high and low that I've seen before include "Where to search" , "roads to be taken in the air" , "Suffering from mood swings" , "Like varieties of churchmanship" , "in all sorts of places?" .)