Penetrated (7)
'penetrated' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for entered that I've seen before include "Logged; arrived" , "Went in and registered as competitor" , "Ten deer (anag) - went in" , "Put down" , "Came in; recorded" .)
'penetrated' is the definition.
(piercing is a kind of penetrating)
This is all the clue.
(Other definitions for pierced that I've seen before include "Transfixed" , "Impaled" , "stabbed" , "Run through" , "Holed" .)