Hot ire concerning sycophantic associate (6-2)
I believe the answer is:
hanger-on
'sycophantic associate' is the definition.
(I've seen this before)
'hot ire concerning' is the wordplay.
'hot' becomes 'h'.
'ire' becomes 'anger' ('anger' can be a synonym of 'ire').
'concerning' becomes 'on'.
'h'+'anger'+'on'='HANGER-ON'
(Other definitions for hanger-on that I've seen before include "An unwanted follower or dependant - swings out of you" , "Dependent - sycophantic follower" , "Sycophantic associate" , "Someone who tags along" , "A sycophant - he really clings" .)