Indeed, without work, nothing new made as well (3,4,7)
I believe the answer is:
for good measure
'as well' is the definition.
(I've seen this before)
'indeed without work nothing new made' is the wordplay.
I cannot quite see how this works, but
'work' could be 'go' (synonyms) and 'go' is found within the answer.
'nothing' could be 'o' (looks like zero - 0) and 'o' is found within the answer.
an anagram of 'made' is 'dmea' which is within the answer.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for for good measure that I've seen before include "in addition?" , "as finishing touch?" , "as well" , "Why we calibrate scales" , "as an extra precaution" .)