Forget for now temperature in coastal area (3,5)
I believe the answer is:
set aside
'forget for' is the definition.
'set aside' can be an answer for 'forget' (thesaurus). I'm not sure about the 'for' bit.
'temperature in coastal area' is the wordplay.
'temperature' becomes 't' (abbreviation).
'in' is an insertion indicator.
'coastal area' becomes 'sea-side' (I've seen this before).
't' placed within 'seaside' is 'SET-ASIDE'.
'now' is the link.
Can you help me to learn more?
(Other definitions for set aside that I've seen before include "The policy of taking land out of production to reduce crop surpluses" , "kept for later" , "Discount" , "Reserve for future use" , "Policy for leaving land alone" .)