Adult’s run out to scoop up wild poorly animal (9)
I believe the answer is:
Here is my best explanation:
'animal' is the definition.
(armadillo is a kind of animal)
'adult's run out to scoop up wild poorly' is the subsidiary indication.
'adult' becomes 'a'.
'run out' becomes 'ro' (cricket abbreviation).
'to scoop up' is an insertion indicator.
'wild' becomes 'mad' ('mad' can be similar in meaning to 'wild').
'poorly' becomes 'ill' ('ill' can be a synonym of 'poorly').
'ro' enclosing 'madill' is 'rmadillo'.
(Other definitions for armadillo that I've seen before include "Bony-plated mammal", "Nocturnal animal", "Molar laid out for the horny-plated animal", "S. Am. plated mammal", "Mammal with protective plates", "Scaly mammal", "Plated mammal", "Plated burrowing animal", "Scaly burrowing animal" and "Animal covered with long plates".)