This is extremely helpful when you aren’t familiar with a particular setter’s style. If you’ve guessed an answer (and if you’re on a mobile app you might have already been able to verify that it’s correct) you may not be sure how the clue maps to it.
Example:
Digital projection tempered elation (7)
I believe the answer is:
TOENAIL 'digital projection' is the definition. (protection on a digit of the foot)
'tempered elation' is the wordplay. 'tempered' indicates an anagram (temper can mean to adjust or modify). 'elation' is an anagram of 'TOENAIL'.