Imposing on two lads (5)
I believe the answer is:
royal
'imposing' is the definition.
(thesaurus)
'on two lads' is the wordplay.
I cannot quite understand how this works, but
'on' could be 'o' (I've seen this in other clues) and 'o' is located in the answer.
The remaining letters 'ryal' 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 royal that I've seen before include "Of queens, say" , "Relating to king/queen" , "With kingly status" , "- blue; - assent" , "Old gold coin -- stag with 12 or more points" .)