Provides some safety, maybe, but it's full of holes (3)
I believe the answer is:
net
'of holes' is the definition.
The definition suggests a singular noun which matches the answer.
'provides some safety maybe but it's full' is the wordplay.
I cannot really see how this works, but
'it' could be 't' (abbreviation. e.g. in 'tis) and 't' is found within the answer.
The remaining letters 'ne' is a valid word which might be clued in a way I don't see.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for net that I've seen before include "Butterfly trap" , "Clear profit or gain" , "Mesh; after tax" , "Mesh; entrap" , "Lattice" .)