Holiday to Egypt is a load of rubbish (5)
I believe the answer is:
tripe
'is a load of rubbish' is the definition.
(both can mean nonsense)
'holiday to egypt' is the wordplay.
'holiday' becomes 'trip' (I've seen this before).
'to' means one lot of letters go next to another.
'egypt' becomes 'e' (this might be a standard abbreviation of which I'm unaware).
'trip'+'e'='TRIPE'
Can you help me to learn more?
(Other definitions for tripe that I've seen before include "Edible entrails" , "Ruminant's stomach, prepared for cooking" , "Ox stomach as food - it's nonsense" , "Bunk" , "Rhubarb" .)