Takes in, sucks up (7)
I believe the answer is:
absorbs
I believe this is a double definition.
'takes in' is the first definition.
('absorb' can be a synonym of 'take in')
'sucks up' is the second definition.
('absorb' can be a synonym of 'suck up')
(Other definitions for absorbs that I've seen before include "Takes in, sucks up" , "Soaks up" , "Occupies the mind" , "Swallows up" , "Engrosses" .)