Crossword Genius

I’ll beg desperately to get last sausage. That’s understandable (7)

Ross

I believe the answer is:

legible

I'm a little stuck... Click here to teach me more about this clue!

'understandable' is the definition.
Both the answer and definition are adjectives. Maybe they are linked in a way I don't understand?

'i'll beg desperately to get last sausage' is the wordplay.
'desperately' indicates anagramming the letters.
'to get' indicates putting letters inside.
'last' says to take the final letters.
The last letter of 'sausage' is 'e'.
'ill'+'beg'='illbeg'
'illbeg' with letters rearranged gives 'lgible'.
'lgible' going around 'e' is 'LEGIBLE'.

'that's' acts as a link.

Can you help me to learn more?

(Other definitions for legible that I've seen before include "Good characters are" , "Well written" , "Decipherable" , "Unlike a doctor's handwriting?" , "Able to be read" .)

I've seen this clue in the Sydney Morning Herald.
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