At height, Boeing perhaps nearly gets a type of fracture (8)
I believe the answer is:
hairline
'type of fracture' is the definition.
The definition and answer can be both related to communication as well as being singular nouns.
Perhaps they are linked in a way I don't understand?
'at height boeing perhaps nearly gets a' is the wordplay.
I cannot quite understand how this works, but
'at' could be 'in' (synonymous in some cases - eg at school, in school) and 'in' is found within the answer.
'height' could be 'h' (abbreviation in geometry) and 'h' is found in the answer.
'a' is within the answer.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for hairline that I've seen before include "(Very fine) crack or fracture" , "A very narrow crack, a little hirsute?" , "Barnet's border" , "Very narrow opening" , "Type of crack" .)