Belfast barge foundering -- daughter completely shocked (13)
I believe the answer is:
flabbergasted
'shocked' is the definition.
(I've seen this in another clue)
'belfast barge foundering daughter completely' is the wordplay.
I cannot quite see how this works, but
an anagram of 'barge' is 'berga' which is present in the answer.
an anagram of 'belfast' is 'flabste' which is present in the left over letters.
'daughter' could be 'd' (genealogical abbreviation) and 'd' is found within the answer.
This accounts for all the letters.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for flabbergasted that I've seen before include "Greatly surprised" , "Dumbfounded" , "Gobsmacked" , "Thunderstruck" , "Overwhelmed" .)