Put up with huge beast (4)
I believe the answer is:
bear
This clue could be a double definition.
'put up with' is the first definition.
('bear' can be a synonym of 'put up with')
'huge beast' is the second definition.
'bear' can be an answer for 'beast' (bear is a kind of beast). I am unsure of the 'huge' bit.
Can you help me to learn more?
(Other definitions for bear that I've seen before include "eg Pooh" , "Carry, convey" , "Support (a weight)" , "Tolerate; animal" , "Harbour - transport" .)