Merton (comedian) wasted tip (14)
I believe the answer is:
recommendation
'tip' is the definition.
The definition and answer can be both related to communication as well as being singular nouns.
Maybe there's a link between them I don't understand?
'merton comedian wasted' is the wordplay.
'wasted' indicates an anagram.
'merton'+'comedian'='mertoncomedian'
'mertoncomedian' is an anagram of 'RECOMMENDATION'.
Can you help me to learn more?
(Other definitions for recommendation that I've seen before include "good word!" , "Suggestion as to the best course of action" , "testimonial" .)