Orchestra parts are successful in 60's UK number one (6)
I believe the answer is:
wilson
'one' is the definition.
Both the definition and answer are singular nouns.
Perhaps they are linked in a way I don't understand?
'orchestra parts are successful in 60's uk number' is the wordplay.
'orchestra' becomes 'LSO' (London Symphony Orchestra).
'parts' means one lot of letters goes inside another (in the sense of cuts or separates).
'are successful in 60's uk' becomes 'wi' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'number' becomes 'n' (n can represent any number).
'wi'+'n'='win'
'lso' put within 'win' is 'WILSON'.
Can you help me to learn more?
(Other definitions for wilson that I've seen before include "Take on; take for granted" , "- Get your Gun (Musical)" , "US president and UK prime minister" , "Labour leader" , "Harold -, UK PM" .)