sentences:  A similar trick is played in the old clue "A wicked thing" for CANDLE, where the -ed suffix must be understood in its "equipped with a ..." meaning.In the case of the -er suffix, this trick could be played with other meanings of the suffix, but except for river → BANKER (a river is not a 'thing that banks' but a 'thing that has banks'), this is rarely done.Sometimes "compiler", or the name or codename of the compiler (if visible by the crossword), codes for some form of the pronoun "I, me, my, mine".