Pull profit, taking it in (7)
I believe the answer is:
gravity
'pull profit' is the definition.
'gravity' can be an answer for 'pull' (thesaurus). I am not sure about the 'profit' bit.
'taking it in' is the wordplay.
'taking' becomes 'gravy' (I am not sure about this - if you are sure you should believe this answer much more).
'in' means one lot of letters goes inside another.
'gravy' going around 'it' is 'GRAVITY'.
Can you help me to learn more?
(Other definitions for gravity that I've seen before include "weight" , "Seriousness - attractive force" , "It causes objects to fall to the ground when dropped" , "Pulling power" , "The force of attraction between masses in the universe" .)