Shortly come to the point over e-business (6)
I believe the answer is:
dotcom
'e-business' is the definition.
I don't know anything about this answer so I can't tell whether it can be defined by this definition.
'shortly come to the point' is the wordplay.
'shortly' means to remove the last letter.
'to' says to put letters next to each other (I've seen this in other clues).
'the point' becomes 'dot' (synonyms).
'come' with its final letter removed is 'com'.
'com' after 'dot' is 'DOTCOM'.
'over' acts as a link.
Can you help me to learn more?
(Other definitions for dotcom that I've seen before include "On-line business" , "Suffix often attached to website address (3.3)" , "Internet address suffix" , "Internet company (colloq.)" , "Company that conducts its business on the Internet" .)