Like hiring and firing fool working with soldier? (8)
I believe the answer is:
assonant
'like hiring and firing' is the definition.
('hiring' and 'firing' are assonant, ie they rhyme)
'fool working with soldier?' is the wordplay.
'fool' becomes 'ass' (both can mean a stupid person).
'working' becomes 'on' (e.g. a machine is working or on).
'with' means one lot of letters go next to another.
'soldier?' becomes 'ant' (soldier is a type of ant).
'ass'+'on'+'ant'='ASSONANT'
(Other definitions for assonant that I've seen before include "having correspondence" , "describing courage with carriage" , "Like mauve and taupe" , "Having similar sounds" , "Having resemblance in sound" .)