### Clue: Work outside home with fine alloy sheet (7)
### Answer: TINFOIL 
 ### Explanation: Definition: alloy sheet
 TOIL(extremely hard work) **containing**(outside) [IN(at home/not out) **plus**(with) F(abbrev. for "fine")].
Defn: Very thin sheet of an alloy of mainly aluminium, incorrectly called tinfoil, the tin sheet that it superseded.