A unit's crafty contribution in space (6)
I believe the answer is:
module
'space' is the definition.
Although both the answer and definition are singular nouns, I don't understand how they can define each other.
'a unit's crafty contribution in' is the wordplay.
'a unit' becomes 'mole' (mole is a kind of unit).
'crafty contribution' becomes 'du' (I am not sure about this - if you are sure you should believe this answer much more).
'in' means one lot of letters goes inside another.
'mole' placed around 'du' is 'MODULE'.
Can you help me to learn more?
(Other definitions for module that I've seen before include "Unit of a study course" , "Self-contained unit, of study perhaps" , "Element of course etc." , "Short study course" , "Detachable compartment of a spacecraft" .)
