Go up and get caught on branch of tree (5)
I believe the answer is:
climb
'go up' is the definition.
(I know that go up can be written as climb)
'get caught on branch of tree' is the wordplay.
'get' becomes 'see' (both can mean to understand).
'caught' shows a homophone (sound like) (to catch something can mean to hear it).
'on' says to put letters next to each other.
'branch of tree' becomes 'limb' (I've seen this before).
'see' sounds like 'c'.
'c'+'limb'='CLIMB'
'and' acts as a link.
(Other definitions for climb that I've seen before include "showing the way up" , "Use hands and feet to rise" , "Go up - scale" , "Rise (in value, status)" , "Soar" .)