Varied centres in information technology converge (9)
I believe the answer is:
intersect
'converge' is the definition.
(thesaurus)
'varied centres in information technology' is the wordplay.
'varied' indicates an anagram.
'in' indicates putting letters inside.
'information technology' becomes 'IT' (common abbreviation).
'centres' is an anagram of 'ntersec'.
'ntersec' put inside 'it' is 'INTERSECT'.
(Other definitions for intersect that I've seen before include "Cut across" , "Criss-cross" , "Divide into parts" , "making one cross" , "Meet at a point" .)