Enthusiastically removing starters without purpose (4)
I believe the answer is:
idly
'without purpose' is the definition.
(I've seen this before)
I cannot understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for idly that I've seen before include "Indolently" , "How one may stand by" , "In a lazy manner" , "How people may stand by" , "without good reason" .)