Full of holes (6)
I believe the answer is:
porous
'full of holes' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for porous that I've seen before include "Riddled with tiny holes like skin" , "Full of holes" , "Like a leaky field" , "Permeable to water etc" , "Able to absorb fluid" .)