What word is suggested by the following clues, which are given in random order?

1. Charged particle
2. Shore seabird
3. Preposition
4. Prisoners, informally

Answers:

1. ION
2. TERN
3. AT
4. CONS - - - CONS-TERN-AT-ION 

Credit:
The Enigma
April, 3019
COUSIN JOE (adapted)