Taking it all in having gone round planet? (9)
I believe the answer is:
absorbent
'taking it all in' is the definition.
(I've seen this before)
'gone round planet?' is the wordplay.
I cannot quite see how this works, but
'round' could be 'orb' and 'orb' is found within the answer.
'gone' could be 'absent' (similar in meaning) and 'absent' is found in the remaining letters.
No letters remain.
This may be the basis of clue (or it may be nonsense).
'having' acts as a link.
Can you help me to learn more?
(Other definitions for absorbent that I've seen before include "receptive" , "Like a towel" , "Porous" , "Bob ran set (anag.)" , "Sucking up liquid" .)