Weight alluded to in eleventh letter mentioned by air-traffic controller? (4)
I believe the answer is:
kilo
'weight' is the definition.
(I have seen 'Metric weight' mean 'kilo' so perhaps 'weight' could also mean 'kilo')
'alluded to in eleventh letter mentioned by air-traffic controller?' is the wordplay.
I cannot quite understand how this works, but
'letter' could be 'o' and 'o' is located in the answer.
The remaining letters 'kil' 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?
(Other definitions for kilo that I've seen before include "Measure of weight" , "Lewis Carroll heroine" , "possible drugs unit" , "Metric weight, informally" , "Metric unit of weight" .)