Send a taxi half a mile (5)
I believe the answer is:
cable
'send' is the definition.
The definition and answer can be both to do with communicating as well as being verbs in their base form.
Maybe they are linked in a way I don't understand?
'a taxi half a mile' is the wordplay.
'a taxi' becomes 'cab' ('cab' can be a synonym of 'taxi').
'half a' indicates taking half.
'mile' cut in half is 'le'.
'cab'+'le'='CABLE'
Can you help me to learn more?
(Other definitions for cable that I've seen before include "Wire, flex" , "Anchor chain; type of TV" , "Wire; message" , "This may pull car up" , "Strong line" .)