Immeasurable praise surrounding maxim recalled (10)
I believe the answer is:
bottomless
'immeasurable' is the definition.
(thesaurus)
'praise surrounding maxim recalled' is the wordplay.
'praise' becomes 'bless' (I've seen this before).
'surrounding' is an insertion indicator.
'maxim' becomes 'motto' (I've seen this before).
'recalled' shows that the letters should be reversed in order (to recall can mean to bring something back).
'motto' backwards is 'ottom'.
'bless' going around 'ottom' is 'BOTTOMLESS'.
(Other definitions for bottomless that I've seen before include "Having no limits" , "Quince thus was in a jam" , "never getting used up?" , "Inexhaustible" , "Unfathomable" .)