Virginia creeper not against supporting walls for clinic offering jab? (7)
I believe the answer is:
vaccine
'jab?' is the definition.
Although both the answer and definition are singular nouns, I cannot understand how they can define each other.
'virginia creeper not against supporting walls for clinic' is the wordplay.
I cannot really understand how this works, but
'virginia' could be 'va' (US state abbreviation) and 'va' is located in the answer.
This may be the basis of the clue (or it may be nonsense).
'offering' acts as a link.
Can you help me to learn more?
(Other definitions for vaccine that I've seen before include "Preparation used for inoculation" , "Antibody stimulator" , "Immunity provider" , "Immunity stimulant" , "Antigenic preparation" .)