Are bats arranged side by side? (7)
I believe the answer is:
abreast
'side by side?' is the definition.
('abreast' can be a synonym of 'side by side')
'are bats arranged' is the wordplay.
'arranged' indicates an anagram (letters rearranged).
'are'+'bats'='arebats'
'arebats' anagrammed gives 'ABREAST'.
(Other definitions for abreast that I've seen before include "Level in line" , "to be up to date" , "Side by side - in the picture" , "Alongside one another and facing the same way" , "Side by side; keeping pace" .)