Sentence:  He was known as 'Mad Carew' by the <WSD>subs</WSD> at Khatmandu,/ He was hotter than they felt inclined to tell;/ But for all his foolish pranks, he was worshipped in the ranks,/ And the Colonel's daughter smiled on him as well. 
Meaning of the word marked with <WSD> tags:  A subaltern.