Intend, also, to get into the group (7)
I believe the answer is:
platoon
'the group' is the definition.
The answer is an example.
'intend also to get into' is the wordplay.
'intend' becomes 'plan' (planning is a kind of intending).
'also' becomes 'too' ('too' can be a synonym of 'also').
'to get into' means one lot of letters goes inside another.
'plan' going around 'too' is 'PLATOON'.
(Other definitions for platoon that I've seen before include "Soldiers under lieutenant" , "detail" , "Team under lieutenant" , "Military group" , "Company's subdivision" .)