Admitted being a bit of a blether (3)
I believe the answer is:
let
'admitted being' is the definition.
Although both the answer and definition are singular nouns, I cannot understand how they can define each other.
'a bit of a blether' is the wordplay.
'a bit of' indicates a hidden word.
'LET' can be found hidden inside 'blether'.
Can you help me to learn more?
(Other definitions for let that I've seen before include "Rent out (property)" , "Service that must be repeated" , "Allow or rent" , "Allow; rental period" , "Was inclined to ignore" .)