Nothing worried visiting Russian banker in involving just one party (10)
I believe the answer is:
unilateral
'just one party' is the definition.
Both the definition and answer are adjectives. Perhaps there's a link between them I don't understand?
'nothing worried visiting russian banker in' is the wordplay.
'nothing' becomes 'nil' (eg nil is zero in football).
'worried' becomes 'ate' (something worrying may eat someone up).
'visiting' says to put letters next to each other.
'russian banker' becomes 'Ural' (Russian river - something with banks).
'in' is an insertion indicator.
'nil'+'ate'='nilate'
'nilate' placed within 'ural' is 'UNILATERAL'.
'involving' acts as a link.
Can you help me to learn more?
(Other definitions for unilateral that I've seen before include "affecting only one person out of several" , "One-sided" , "Done only by one side" .)