Dot missing last details (4)
I believe the answer is:
spec
'details' is the definition.
The definition and answer can be both related to communication as well as being singular nouns.
Maybe they are linked in a way I don't understand?
'dot missing last' is the wordplay.
'dot' becomes 'speck' (I've seen this before).
'missing last' means to remove the last letter.
'speck' with its final letter taken away is 'SPEC'.
Can you help me to learn more?
(Other definitions for spec that I've seen before include "Description of requirements" , "Detailed description of design criteria (abbr)" , "Detailed design document (abbr.)" , "Awkward, clumsy" , "Estimate" .)