Tight-lipped, one raising issue (3)
I believe the answer is:
mum
This clue is a double definition.
'tight-lipped' is the first definition.
(I've seen this before)
'one raising issue' is the second definition.
(a mother brings up her offspring or issue)
(Other definitions for mum that I've seen before include "Silence" , "Quiet; relative" , "Tight-lipped" , "Mother - she's the word for secrecy" , "Mother (colloq.)" .)