Send out introduction to elite university (4)
I believe the answer is:
emit
'send out' is the definition.
(I've seen this before)
'introduction to elite university' is the wordplay.
'introduction to' says to take the initial letters.
'university' becomes 'mit' (Massachusetts Institute of Technology).
The first letter of 'elite' is 'e'.
'e'+'mit'='EMIT'
(Other definitions for emit that I've seen before include "Give off or discharge" , "Send forth" , "Discharge - utter" , "Give off, gas say" , "'Give off, odour say (4)'" .)