Doesn't know what one is doing securing type of blood in hospital for crabby relative (7)
I believe the answer is:
lobster
'crabby relative' is the definition.
The answer and definition can be both animals as well as being singular nouns.
Perhaps there's a link between them I don't understand?
'doesn't know what one is doing securing type of blood in hospital' is the wordplay.
I cannot really see how this works, but
'one' could be 'o' (I've seen this in other clues) and 'o' is located in the answer.
'in hospital' could be 'er' (I've seen this in other clues) and 'er' is found in the answer.
This explanation may well be incorrect...
'for' is the link.
Can you help me to learn more?
(Other definitions for lobster that I've seen before include "food?" , "Large, strong-jawed crustacean" , "could find this on the table" , "Bolster up the sea-creature" , "Bolster (anag.)" .)