Pull from Asian beast carrying unspecified number (4)
I believe the answer is:
yank
'pull' is the definition.
(yanking is a kind of pulling)
'asian beast carrying unspecified number' is the wordplay.
'asian beast' becomes 'yak' (I have seen 'Beast of burden ' mean 'yak' so perhaps 'beast' could also mean 'yak'. I am not sure about the 'asian' bit.**).
'carrying' is an insertion indicator.
'unspecified number' becomes 'n' (I've seen this in other clues).
'yak' going around 'n' is 'YANK'.
'from' is the link.
Can you help me to learn more?
(Other definitions for yank that I've seen before include "Term for an American" , "Jerk, pull suddenly" , "Wrench" , "Sharp movement" , "Tug sharply - American" .)