Any being corrupt get involved with Zulu banker (7)
I believe the answer is:
yangtze
'banker' is the definition.
(Chinese river, something with banks)
'any being corrupt get involved with zulu' is the wordplay.
'being corrupt' indicates an anagram.
'involved with' indicates anagramming the letters (involved can mean confusing or complex).
'zulu' becomes 'Z' (phonetic alphabet: alpha, bravo, charlie etc.).
'any' anagrammed gives 'yan'.
'get' anagrammed with 'z' gives 'gtze'.
'yan'+'gtze'='YANGTZE'
(Other definitions for yangtze that I've seen before include "The . . . . . . . Kiang is china's principal river" , "Longest river of Asia" , "Chinese river; get zany (anag.)" , "Asia's longest river" , "Major Chinese river" .)