Suitable number for a small flat (5)
I believe the answer is:
seven
'suitable number' is the definition.
'seven' can be an answer for 'number' (seven is a kind of whole number). I am not sure about the 'suitable' bit.
'small flat' is the wordplay.
'small' becomes 's' (abbreviation - e.g. clothes size).
'flat' becomes 'even' (level).
's'+'even'='SEVEN'
'for a' is the link.
Can you help me to learn more?
(Other definitions for seven that I've seen before include "Number of sins, seas or dwarves" , "Wonders of the World - Deadly Sins" , "number of swans aswimming" , "Cardinal" , "Cube root of 343" .)