Reveal how to clumsily pod legumes? (5,3,5)
I believe the answer is:
spill the beans
'reveal' is the definition.
(to spill the beans is to reveal a secret)
'to clumsily pod legumes?' is the wordplay.
I cannot quite understand how this works, but
'legumes?' could be 'beans' (bean is a kind of legume) and 'beans' is located in the answer.
This may be the basis of clue (or it may be nonsense).
'how' acts as a link.
(Other definitions for spill the beans that I've seen before include "Give the game away" , "Embarrassingly reveal a secret" , "Tell us!" , "Grass" , "Disclose, confess" .)