Having evidently put on weight, her life’s in disarray (8)
I believe the answer is:
fleshier
'having evidently put on weight' is the definition.
(having more flesh)
'her life's in disarray' is the wordplay.
'in disarray' indicates anagramming the letters.
'her'+'lifes'='herlifes'
'herlifes' anagrammed gives 'FLESHIER'.
(Other definitions for fleshier that I've seen before include "Carrying more weight" , "containing more substance" .)