The least out of shape? (8)
I believe the answer is:
athletes
'shape?' is the definition.
Although both the answer and definition are nouns, they are not in the same form of the noun.
'the least out' is the wordplay.
'out' is an anagram indicator (out can mean wrong or inaccurate).
'the'+'least'='theleast'
'theleast' anagrammed gives 'ATHLETES'.
'of' is the link.
Can you help me to learn more?
(Other definitions for athletes that I've seen before include "Derval O'Rourke and Usain Bolt, say" , "Eels that are good at sports" , "Fungal infection" , "Steal the strangely fit people" , "Sporty types" .)