Not the only one given short change out East (6)
I believe the answer is:
others
'not the only one' is the definition.
I know nothing about this answer so I can't judge whether this works.
'short change out east' is the wordplay.
'change' is an anagram indicator.
'out' means one lot of letters goes inside another.
'east' becomes 'e' (abbreviation).
'short' with letters rearranged gives 'othrs'.
'othrs' going around 'e' is 'OTHERS'.
'given' is the link.
Can you help me to learn more?
(Other definitions for others that I've seen before include "The rest" , "Different from those already mentioned" , "Not the same one already mentioned" , "Not these, alternatives" , "Different ones" .)