Little room for key points (3)
I believe the answer is:
den
'little room' is the definition.
'den' can be an answer for 'room' (den is a kind of room). I am not certain of the 'little' bit.
'key points' is the wordplay.
'key' becomes 'd' (I've seen this in other clues**).
'points' becomes 'en'.
'd'+'en'='DEN'
'for' is the link.
Can you help me to learn more?
(Other definitions for den that I've seen before include "Lair for animal or study for gent" , "Animal habitation" , "Cave" , "Animals' shelter" , "Hiding place" .)