Famously lacking ability? (7)
I believe the answer is:
notable
'famously lacking ability?' is the definition.
Although both the answer and definition are singular nouns, I don't understand how they can define each other.
'lacking ability?' is the wordplay.
'lacking' becomes 'no' (eg lacking money means with no money).
'ability?' becomes 'table' (I can't explain this - if you can you should give a lot more credence to this answer).
'no'+'table'='NOTABLE'
Can you help me to learn more?
(Other definitions for notable that I've seen before include "Famous or memorable" , "Worth remembering" , "Striking" , "Star" , "Worthy of attention, significant" .)