Disc engine's case used for thruster? (4)
I believe the answer is:
epee
'for thruster?' is the definition.
Although both the answer and definition are singular nouns, I don't see how one could define the other.
'disc engine's case' is the wordplay.
'disc' becomes 'EP' (extended play record).
'case' suggests removing the centre.
'engine' with its middle taken out is 'ee'.
'ep'+'ee'='EPEE'
'used' is the link.
Can you help me to learn more?
(Other definitions for epee that I've seen before include "sports equipment" , "Fencing weapon" , "Duelling weapon" , "Thin fencing sword" , "Rapier" .)