He needs fuel in store, perhaps, around the week-end (6)
I believe the answer is:
stoker
'he needs fuel' is the definition.
The answer is a person as well as being a singular noun. This is suggested by the definition.
'store perhaps around the week-end' is the wordplay.
'perhaps' indicates an anagram.
'around' indicates putting letters inside.
'the week-end' becomes 'k' (end of the word 'week').
'store' is an anagram of 'stoer'.
'stoer' going around 'k' is 'STOKER'.
'in' is the link.
Can you help me to learn more?
(Other definitions for stoker that I've seen before include "Someone who fuels a furnace" , "Bram ...... wrote 'Dracula'" , "Vampires were subject to" , "One tends to fire" , "author of scary stories" .)