Invest Asian currency, turning up a bit of capital (6)
I believe the answer is:
putney
'up a bit of capital' is the definition.
I know nothing about this answer so I can't judge whether it can be defined by this definition.
'invest asian currency turning' is the wordplay.
'invest' becomes 'put' (synonyms).
'asian currency' becomes 'yen' (I've seen this in another clue).
'turning' is a reversal indicator.
'yen' in reverse letter order is 'ney'.
'put'+'ney'='PUTNEY'
Can you help me to learn more?
(Other definitions for putney that I've seen before include "Start of today's race" , "Start point for University Boat Race" , "Starting point for university boat race" , "Start point for varsity boat race" , "on the Thames - with 28a" .)