Army regulation requires something to fix bright light (3-4)
I believe the answer is:
arc-lamp
'bright light' is the definition.
(I've seen this before)
'army regulation requires something to fix' is the wordplay.
I cannot really understand how this works, but
'fix' could be 'clamp' (clamping is a kind of fixing) and 'clamp' is located in the answer.
The remaining letters 'ar' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...
Can you help me to learn more?
I've seen this clue in The Independent.
Want a hint initially instead of a full solution?
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