A reliable person; a building block; or, a heavy old mobile phone

Let's find possible answers to "A reliable person; a building block; or, a heavy old mobile phone" crossword clue. First of all, we will look for a few extra hints for this entry: A reliable person; a building block; or, a heavy old mobile phone. Finally, we will solve this crossword puzzle clue and get the correct word. We have 1 possible solution for this clue in our database.