Though depressed, it's fatal to blow top - they have to pay for bed and breakfast (9)
I believe the answer is:
atalowebb
'fatal to blow top they have to pay for bed and breakfast' is the definition.
I know nothing about this answer so I can't judge whether it can be defined by this definition.
'though depressed it's' is the wordplay.
I cannot really understand how this works, but
'depressed' could be 'low' (synonyms) and 'low' is present in the answer.
'it' could be 't' (abbreviation. e.g. in 'tis) and 't' is found within the answer.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for atalowebb that I've seen before include "Feeling weak" , "the tide is about to turn [four words]" .)