White fish from Belgium found in the odd lounge and top alehouse (6)
I believe the answer is:
beluga
'white fish' is the definition.
'beluga' can be an answer for 'fish' (beluga is a kind of fish). I am not certain of the 'white' bit.
'belgium found in the odd lounge and top alehouse' is the wordplay.
'belgium' becomes 'be' (I've seen this in other clues).
'found in' indicates an anagram.
'the odd' means one should take alternating letters.
'and' is a charade indicator (letters next to each other).
'top' suggests taking the first letters.
The initial letter of 'alehouse' is 'a'.
The alternate letters of 'lounge' are 'lug'.
'lug' put after 'a' is 'alug'.
'alug' is an anagram of 'luga'.
'be'+'luga'='BELUGA'
'from' acts as a link.
Can you help me to learn more?
(Other definitions for beluga that I've seen before include "large marine creature" , "Large sturgeon or it's caviare" , "fish" , "Could a bugle be a source of caviar?" , "Large Russian sturgeon" .)