Old enough for a couple of kisses (6)
I believe the answer is:
twenty
This could be a double definition.
'old enough' is the first definition.
The definition and answer can be both quantities as well as being singular nouns.
Maybe they are linked in a way I don't understand?
'couple of kisses' is the second definition.
The answer and definition can be both quantities as well as being singular nouns.
Maybe you can see a link between them that I can't see?
'for a' acts as a link.
Can you help me to learn more?
(Other definitions for twenty that I've seen before include "with two crosses" , "Cardinal" , "Dozen plus eight" , "No. between 5 and 1 on dartboard" , "made by Q on a light blue square" .)