The most common and most likely answer to this crossword clue is the 4 letter word HOST
I've seen this crossword clue in The Guardian
H
O
S
T
More clues leading to the result HOST
Buddy explains!
The straight part
We know that "Landlady/army" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case landlady/army = host.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does HOST mean?
HOST noun- One which receives or entertains a guest, socially, commercially, or officially.
- One that provides a facility for an event.
- A person or organization responsible for running an event.
- A moderator or master of ceremonies for a performance.
- Any computer attached to a network.
- A cell or organism which harbors another organism or biological entity, usually a parasite.
- (evolution) An organism bearing certain genetic material.
- A paid male companion offering conversation and in some cases sex, as in certain types of bar in Japan.
- To perform the role of a host.
- To lodge at an inn.
- To run software made available to a remote user or process.
- A multitude of people arrayed as an army; used also in religious senses, as: Heavenly host (of angels)
- A large number of items; a large inventory.
- The consecrated bread or wafer of the Eucharist.