Idealised representation of current Chairman taking in government (5)
I believe the answer is:
imago
'idealised representation' is the definition.
(psychological term)
'current chairman taking in government' is the wordplay.
'current' becomes 'I' (symbol for electric current).
'chairman' becomes 'Mao' (Chinese leader Chairman Mao).
'taking in' means one lot of letters goes inside another.
'government' becomes 'g' (abbreviation for government).
'mao' going around 'g' is 'mago'.
'i'+'mago'='IMAGO'
'of' acts as a link.
(Other definitions for imago that I've seen before include "Post-pupa stage of an insect" , "picture of important person" , "being immature?" , "Final stage of an insect's development" , "Beetle, for example" .)