Expert to welcome short snack in bar (8)
I believe the answer is:
prohibit
'snack in bar' is the definition.
'prohibit' can be an answer for 'bar' (I've seen this before). I am not certain of the 'snack in' bit.
'expert to welcome short' is the wordplay.
'expert' becomes 'pro' (I've seen this before).
'to welcome' becomes 'hi' (I've seen this in other clues).
'short' becomes 'bit'.
'pro'+'hi'+'bit'='PROHIBIT'
Can you help me to learn more?
(Other definitions for prohibit that I've seen before include "Stop" , "Ban; prevent" , "Proscribe, forbid" , "Forbid, ban" , "Disallow" .)