This comes under the hammer, two graduates holding the edge (7)
I believe the answer is:
marimba
'this comes under the hammer' is the definition.
The definition suggests a singular noun which matches the answer.
'two graduates holding the edge' is the wordplay.
'two graduates' means two replacements for 'graduate'.
'graduate' becomes 'MA' (abbreviation for Master of Arts).
'graduate' becomes 'BA' (someone with a Bachelor of Arts degree).
'holding' means one lot of letters goes inside another.
'the edge' becomes 'rim' (rim is a kind of edge).
'ma'+'ba'='maba'
'maba' enclosing 'rim' is 'MARIMBA'.
Can you help me to learn more?
(Other definitions for marimba that I've seen before include "Latin American instrument like a xylophone" , "Form of xylophone" , "African xylophone" , "Jazz instrument" , "Xylophone-like instr." .)
