You pull on its dry end (3)
I believe the answer is:
oar
'you pull' is the definition.
'oar' can be an answer for 'pull' (thesaurus). I'm not sure about the 'you' bit.
'on its dry end' is the wordplay.
'on' says to put letters next to each other.
'its' becomes 'o' (I can't justify this - if you can you should give a lot more credence to this answer).
'dry' becomes 'air' (airing is a kind of drying).
'end' means to remove the middle letters (I've seen 'ends' mean this).
'air' with its centre taken out is 'ar'.
'o'+'ar' is 'OAR'.
Can you help me to learn more?
(Other definitions for oar that I've seen before include "One of an eight" , "Bladed pole" , "Rower" , "Rower's flat blade" , "It ends in blade" .)