Vitality gets woman married (3)
I believe the answer is:
vim
'vitality' is the definition.
('vim' can be a synonym of 'vitality')
'woman married' is the wordplay.
'woman' becomes 'vi' (**).
'married' becomes 'm'.
'vi'+'m'='VIM'
'gets' is the link.
(Other definitions for vim that I've seen before include "Informal energy or drive" , "Liveliness" , "Pep and vigour" , "Pep and energy" , "Pep (informal)" .)