Lurkers hide in plain sight. In other words the full answer is already in the clue as a phrase across so many words, or partial words. All you have to do is find it!
Keywords for lurkers
about, boxing, by, during, find it here, found, holds this, in part, installed, of, overshadows, overwhelming, portion of, quantity, some, somewhat, swallowing, that somewhat (the word(s) you want are in the clue), to expose, within, with some.
For example, in this phrase “current ideology” you can find the answer from currenT IDEology, “tide”.
After a certain phrase in a cryptic clue, “not to maximum extent” suggests there is a lurker in the phrase, meaning not all the letters. Lurkers can also be hidden in reverse (a lurker is hidden backwards), as in the first example.
1] Language rejected by cryptographer (5). The lurker is crypTOGRApher. Rejected is requiring this to be reveresed, thus the answer is “argot”, which is a specialised vocabulary used by a select group.
2] Horror of nudist as teacher (8). The lurker is in the phrase “nudist as teacher”, thus nuDIST AS Teacher. The answer is “distaste”.
3] Leave out some heirloom I treasure (4). You need a synonym for leave out. Some is a lurker flag. Take the answer from heirloOM I Treasure, to get “omit”.
4] Girl found over in Hammersmith (4). Found is the lurker flag. Over is keyword to reverse the selected letters from hAMMErsmith. The answer is “Emma”.
5] Some may do lemonade – if upset, that sounds good (6). Some is the lurker flag. Upset is the keyword to reverse the letters from maY DO LEMonade, to get YDOLEM, for the answer “melody”.
By Nigel Benetton
Last updated: Monday, 29th March 2021