Suggest infiltrating small leftist group (6,3)
I believe the answer is:
simply red
'group' is the definition.
Both the answer and definition are adjectives.
Perhaps they are linked in a way I don't understand?
'suggest infiltrating small leftist' is the wordplay.
'suggest' becomes 'imply' (implying is a kind of suggesting).
'infiltrating' is an insertion indicator.
'small' becomes 's' (abbreviation - e.g. clothes size).
'leftist' becomes 'red' (red can informally mean communist).
's'+'red'='sred'
'imply' placed within 'sred' is 'SIMPLY RED'.
Can you help me to learn more?
(Another definition for simply red that I've seen is " Band".)