A horse and sheep in cryptic rearrangement? (7)
I believe the answer is:
anagram
'cryptic rearrangement?' is the definition.
'anagram' can be an answer for 'rearrangement?' (I have seen 'Rearrangement of letters ' mean 'anagram' so perhaps 'rearrangement' could also mean 'anagram'). I also know that 'cryptic' relates to this answer.
'a horse and sheep' is the wordplay.
'horse' becomes 'nag' (term for an old horse).
'and' says to put letters next to each other.
'sheep' becomes 'ram' (male sheep).
'a'+'nag'+'ram'='ANAGRAM'
'in' acts as a link.
(Other definitions for anagram that I've seen before include "Word(s) rearranged to form others" , "a mix of characters" , "Rearrangement of letters in word or phrase to form another" , "Scramble of letters (to make trestle, perhaps)" , "Word formed by rearranging another word" .)