One of those in the house synonymous with a diet? (15)
I believe the answer is:
parliamentarian
'one' is the definition.
Although both the answer and definition are singular nouns, I don't understand how they can define each other.
'those in the house synonymous with a diet?' is the wordplay.
I cannot quite see how this works, but
'a' could be 'an' and 'an' is found within the answer.
'diet?' could be 'parliament' (I've seen this before) and 'parliament' is found within the answer.
This may be the basis of clue (or it may be nonsense).
'of' is the link.
Can you help me to learn more?
(Other definitions for parliamentarian that I've seen before include "legislator" , "Eg, an MP" , "politician" , "elected representative?" .)