Some material air support for those living in secret (5)
I believe the answer is:
lairs
'those living in secret' is the definition.
I can't judge whether this defines the answer.
'some material air support' is the wordplay.
'some' indicates the answer is hidden within the clue (some of the parts of the word are used).
'LAIRS' is hidden in the letters of 'material air support'.
'for' is the link.
Can you help me to learn more?
(Other definitions for lairs that I've seen before include "Places to hide" , "Resting places of wild animals" , "Animals' dens" , "Scottish landowners" , "retreats" .)