Gas-lamps evenly provide staff for a charity-receiver (7)
I believe the answer is:
almsman
'a charity-receiver' is the definition.
I can't tell whether this definition defines the answer.
'gas-lamps evenly provide staff' is the wordplay.
'evenly' means one should take alternating letters (the letters in even-numbered positions).
'provide staff' becomes 'man' (I've seen this in another clue).
'gas'+'lamps'='gaslamps'
The alternating letters of 'gaslamps' are 'alms'.
'alms'+'man'='ALMSMAN'
'for' is the link.
Can you help me to learn more?
(Other definitions for almsman that I've seen before include "he gets the benefit" , "who gets relief" , "receiving charity" .)