Daggy uncle endlessly ate eggs (6)
I believe the answer is:
uncool
'daggy' is the definition.
I know nothing about this answer so I cannot tell whether it can be defined by this definition.
'uncle endlessly ate eggs' is the wordplay.
'endlessly' means to remove the last letter.
'ate' indicates putting letters inside.
'eggs' becomes 'oo' (two O's - O looks like an egg).
'uncle' with its final letter taken off is 'uncl'.
'uncl' placed around 'oo' is 'UNCOOL'.
Can you help me to learn more?
(Other definitions for uncool that I've seen before include "Not fashionable (colloq.)" , "Not with it (but warm?)" , "Old-fashioned" , "Not in fashion or with it" , "hot?" .)