Breastfeeds regularly — that's admired (5)
I believe the answer is:
rated
'admired' is the definition.
(I've seen this before)
'breastfeeds regularly' is the wordplay.
'regularly' indicates alternate letters (regularly take one letter, leave next etc.).
The alternate letters of 'breastfeeds' are 'RATED'.
'that's' acts as a link.
(Other definitions for rated that I've seen before include "Reckoned" , "Assessed in trade" , "Had a high opinion of" , "Trade (anag.)" , "Admired" .)