biodegrade (5)
'biodegrade' is the definition.
(I know that biodegrade is a more specific form of the action decompose)
This is all the clue.
(Other definitions for decay that I've seen before include "'Decompose, rot (5)'" , "Rot, perish" , "Briefly fashionable" , "Decompose or fall into ruin" , "Go bad" .)
'biodegrade' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for rot that I've seen before include "Rubbish (colloq.)" , "Putrefy" , "Collapse" , "Decay, perish" , "Decay, moulder" .)