We may adjust it for cooking our leg (6)
I believe the answer is:
regulo
'we may adjust it' is the definition.
I don't know anything about this answer so I cannot judge whether it can be defined by this definition.
'cooking our leg' is the wordplay.
'cooking' indicates an anagram (cook can mean to falsify or distort).
'our'+'leg'='ourleg'
'ourleg' anagrammed gives 'REGULO'.
'for' acts as a link.
Can you help me to learn more?
(Other definitions for regulo that I've seen before include "Point on scale indicating temperature of gas oven" , "Cooker gas mark" , "Fourscore" .)