Reg’s team rearranged home fixture (3,5)
I believe the answer is:
gas meter
'home fixture' is the definition.
'reg's team rearranged' is the wordplay.
'rearranged' indicates an anagram.
'regs'+'team'='regsteam'
'regsteam' is an anagram of 'GAS-METER'.
(Other definitions for gas meter that I've seen before include "Measuring device for fuel used, for heating perhaps" , "Domestic utility device" , "Fuel flow measurer" , "Bill after its second reading, perhaps" , "Measurer of fuel consumption" .)