Learner in military group hardly bright (5)
I believe the answer is:
unlit
'hardly bright' is the definition.
I can't tell whether this defines the answer.
'learner in military group' is the wordplay.
'learner' becomes 'l' (as in a learner driver with L-plates on their car).
'in' is an insertion indicator.
'military group' becomes 'unit' (group of soldiers).
'l' inserted into 'unit' is 'UNLIT'.
Can you help me to learn more?
(Other definitions for unlit that I've seen before include "not exactly bright" , "Not yet burning" , "Without illumination" , "not switched on" , "Not illuminated" .)