Comical side seems missing from summerhouse (6)
I believe the answer is:
humour
'comical side' is the definition.
The answer and definition can be both related to communication as well as being singular nouns.
Perhaps they are linked in a way I don't understand?
I cannot understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for humour that I've seen before include "State of mind; comply with the whims of (someone)" , "Give way to someone's wishes - it's funny" , "jokes!" , "Gratify by compliance" , "Quality of funniness" .)